Supporting your child through junior AFL is one of the most rewarding things you can do as a parent. It’s also, if we’re honest, one of the most confusing — especially if footy wasn’t your game growing up.
This guide is for every parent standing on the sideline trying to figure out what “good development” actually looks like, what you should be saying after the game, and how to support your kid without accidentally getting in the way. It covers the full journey from Auskick through to U18s.
What does junior AFL development actually mean?
Development in junior AFL isn’t about winning. It’s not even really about stats, at least not early on.
At its core, development means a child is growing as a footballer and an athlete over time — learning new skills, making better decisions under pressure, and building the physical foundations they’ll need as the game gets faster and more demanding.
For parents new to AFL, the easiest way to think about it is this: the goal of every age group is to prepare your child for the next one. A great Under 10 season isn’t measured by goals kicked. It’s measured by whether your child is more comfortable with the ball, more willing to contest, and more in love with the game than they were twelve months ago.
How development changes from U8s through to U18s
The AFL’s own junior rules are designed around one key insight: kids can’t process the game the same way adults can, so the game needs to adapt to them, not the other way around.
Understanding how the game changes across age groups helps you know what to look for — and what to be patient about.
Under 8s and Under 10s are about exposure. The focus is on having fun, touching the ball as much as possible, and developing basic movement skills. Don’t worry about positioning. Don’t worry about kicking technique being perfect. The job at this stage is to fall in love with the game.
Under 12s and Under 14s are where the game starts to take shape. Players learn positions, begin to understand team roles, and develop sport-specific skills like marking, handballing under pressure, and reading where the play is going. This is also the age group where physical differences between kids become most visible — and most misleading.
Under 16s and Under 18s are where athleticism and skill start to matter equally. The pace of the game increases significantly. Decision-making under fatigue becomes a real test. This is the age group where kids who developed strong fundamentals early begin to separate from those who relied on size and physicality.
What the game actually looks like at each age group
If you’re new to AFL, one of the most disorienting things is that the game your child plays at U9 looks almost nothing like the game they’ll play at U16 — and that’s completely by design. The AFL has built a progressive framework where the rules, ground size, team numbers, and physicality all scale with the kids playing.
Here’s what to expect at each stage, drawn from the AFL’s official Junior Rules handbook.
Under 8s — 6-a-side, 70m x 50m ground, no tackling, no scores
This is the gentlest possible introduction to the game. Teams of six play on a tiny oval — about the size of two basketball courts side by side — divided into three equal zones. There’s no tackling at all, no scoreboard, and no bouncing the ball while running. A coach is allowed on the field to guide players during play. No best-and-fairest, no goal kicker awards. The entire focus is on getting kids comfortable with the ball in their hands.
Under 9s — 9-a-side, 85m x 65m ground, modified tackling begins
The oval grows, the team size grows, and for the first time kids can hold an opponent — but only with a “wrap tackle,” not a full tackle with bumping or smothering. Coaches move to the sideline. Still no scores, no ladders. One bounce permitted while running. The zones remain, keeping kids spread across the ground so everyone stays involved.
Under 10s — 12-a-side, 85m x 65m ground, modified tackling continues
Same ground size as U9 but bigger teams. The modified tackling rules still apply — no pushing, bumping, or smothering. Still no scores published. Coaches remain on the sideline. This is the last age group before the game starts opening up physically, so the focus remains firmly on skill repetition in a safe environment.
Under 11s — 12-a-side, 115m x 75m ground, full tackling introduced
This is a significant jump. The oval nearly doubles in length, and for the first time kids can tackle fully — including bumping, fending off, and smothering. The marking rule also changes: a mark is now only awarded when the ball travels at least 10 metres and is caught directly (not just controlled). Scores may be kept at the controlling body’s discretion, but there’s still no requirement for it at this age.
Under 12s — 12-a-side, 115m x 75m ground, full tackling, scores optional
Same setup as U11. Whether scores and ladders are published is up to the local league. Many competitions at this age still choose not to keep scores, prioritising development over results.
Under 13s and 14s — 15-a-side, 125m x 95m ground, full game
This is the first age group that looks meaningfully like senior football. Full tackling and all physical contact rules apply. The marking distance increases to 15 metres. Scores, premiership points, and ladders are now standard. The game also shifts to a leather ball — heavier and harder to control in the wet. Unlimited bounces are permitted. This transition catches a lot of kids (and parents) off guard, because the game suddenly feels much more intense.
Under 15s — 15-a-side (up to 18 on bench), 130m x 100m ground
A slightly larger ground again. Boys play with a size 5 leather ball — the full senior ball. Girls play with a size 4. The pace and intensity at this level is noticeably higher, and athleticism starts to separate players in a way it simply doesn’t at younger ages.
Under 16s to 18s — 18-a-side (boys), 16-a-side (girls), full ground
This is the full game. Full-sized oval, full-sized ball, full contact, full rules. Boys’ teams can field up to 18 players, girls’ up to 16. This is where the game your child has been building toward for a decade finally arrives.
One rule that applies at every single age group: every player must have a minimum of 50–75% game time. This isn’t optional — it’s a formal requirement. If your child is sitting on the bench for more than a quarter of the game on a regular basis, that’s worth raising with the coach.
A note on zones
You’ll notice the younger age groups use zones — the field is divided into thirds, and players are assigned to stay within their zone. For new parents, this can look like kids standing around doing nothing. It’s actually the opposite. Zones prevent the “swarm ball” effect where every child chases the ball into a tight pack and most kids never touch it. Zones keep the game spread out, guarantee every player gets opportunities, and force kids to learn positioning rather than just following the ball. They disappear entirely at U13/14, by which point players should have developed the football sense to find space on their own.
Why kids who dominate at U12 sometimes struggle at U16
This is one of the most common and least talked-about experiences in junior sport, and it can be genuinely confronting for families.
A child who is physically bigger or faster than their peers can look exceptional in the younger age groups. They win contests through strength. They get to the ball first. They kick goals from positions that smaller kids can’t reach. Their stats look outstanding.
Then they move up a grade — or their teammates catch up physically — and suddenly the size advantage disappears. Now the game requires skill, reading of play, and athletic foundation. And if those things weren’t being developed while the physical advantage was doing the heavy lifting, the transition can be tough.
This isn’t failure. It’s a completely normal and well-documented pattern in junior sport. The most important thing a parent can do in those lower age groups is resist the temptation to celebrate the physical wins and instead pay attention to the skill development happening underneath. Is your child’s kicking technique improving? Are they making good decisions when they receive the ball? Are they finding ways to contribute when they’re not the biggest person on the field?
Those are the questions that predict long-term development. Scoreboard performance at U12 is a very poor predictor of who thrives at U16.
The most important thing you can say after a game
Researchers who study youth sport have asked hundreds of kids what they most want to hear from their parents after a game. The answer, overwhelmingly, is this:
“I love watching you play.”
That’s it. Full stop.
Not “you should have kicked that” or “why didn’t you run to the square?” Not even “you played great.” Just the simple, unconditional message that their parent enjoys being there.
It sounds almost too simple. But kids — especially in the U10s to U14s age range — are acutely sensitive to parental approval, and they carry the weight of perceived disappointment onto the training track with them. A child who expects to be critiqued after the game plays defensively during it. They make safer, smaller decisions. They avoid risk. All of which are the opposite of the behaviours that build a developing footballer.
This doesn’t mean pretending a tough game didn’t happen. It means your child’s coach will handle the debrief. Your job on the way home is to make them feel safe, loved, and glad they played.
How to work with the coach, not around them
Volunteer coaches in junior AFL are doing one of the most valuable and underappreciated jobs in Australian community sport. Most of them are parents themselves. They’ve done the accreditation, they’ve planned the sessions, and they have a development plan for your child that you might not be fully across.
One of the most common — and entirely well-intentioned — mistakes parents make is giving kids feedback that contradicts what the coach is working on.
Here’s a concrete example: your child’s coach has been working on their lead-up patterns for three weeks. They want your child to hold their lead until the last moment, then burst to the ball. You watch the game, see your child not getting free, and tell them afterwards to lead earlier. Your child now has two different instructions in their head, from two people they trust, and the result is hesitation when they need confidence.
The fix is easy: talk to the coach. Not to question their approach, but to understand it. A quick two-minute conversation at training — “what are you working on with her this month?” — gives you the information you need to reinforce rather than contradict. Coaches love parents who are aligned with the team’s development direction. It makes their job easier and your child’s progress faster.
If you disagree with something the coach is doing, raise it privately and respectfully. Never on the sideline. Never in front of your child.
What to actually watch for on game day
Once you’ve decided to step back from coaching your kid, you get to do something much more enjoyable: just watch them play.
But if you want to watch with a development lens rather than just tracking the score, here’s what to pay attention to:
Effort in the contest. Is your child willing to put their body in? This is more important than the outcome of the contest, especially in younger age groups.
Decision-making with the ball. When they receive possession, do they take a moment to look for the best option? Or do they panic and kick blindly? Good decision-making is a skill that improves with practice, and you can see it developing from game to game.
Positioning without the ball. Where is your child when the ball is 40 metres away? Are they in a position to receive a kick, or have they lost interest in the play? This is often the most revealing indicator of football IQ in younger players.
Reaction to mistakes. How does your child respond after dropping a mark or kicking it out of bounds? Do they reset quickly, or do they carry the error into the next contest? Resilience under pressure is a key development milestone.
None of these things show up in the final score. All of them tell you something real about how your child is growing.
The long game is the only game worth playing
Junior AFL development is a slow process. It’s supposed to be. The players who come through community clubs and develop into capable senior footballers are almost never the kids who dominated at U10. They’re the ones whose parents stayed patient through the plateaus, supported them through the grade transitions, and kept the experience positive enough that they wanted to keep coming back.
Your child doesn’t need you to be their second coach. They have one of those. They need you to be their biggest fan — the person who makes the car ride home feel safe no matter what the scoreboard said.
If you want to channel your natural desire to understand your child’s development, tracking their game-by-game progress is a genuinely useful thing. Watching how their disposal efficiency changes across a season, or how their contest work rate builds through the year, gives you real data to celebrate — and takes the pressure off interpreting every single performance in isolation.
Frequently Asked Questions
At what age should my child start specialising in AFL?
There’s no rush. Most sports scientists recommend staying multi-sport until at least 12-14 years old, and the AFL’s own junior framework is built around enjoyment and skill variety, not early specialisation. Kids who play multiple sports in their early years often develop better athleticism and decision-making than those who specialise too early.
My child is struggling in the transition from U12s to U14s. Is this normal?
Yes, very. The U12 to U14 transition is one of the toughest in junior AFL because the physical advantages of the younger age groups start to even out, and the game demands more skill and tactical awareness. This is the stage where development that happened in the background becomes most visible. Give it a season before drawing any conclusions.
How should I talk to my child’s coach if I have concerns?
Always privately, and always framed as curiosity rather than criticism. “I’d love to understand what you’re working on with him this season” opens a very different conversation than “why doesn’t she get more game time?” Most volunteer coaches welcome engaged parents — they just need to feel respected, not interrogated.
What’s the difference between development and performance at junior level?
Performance is how your child goes in a single game. Development is how they go across a season, a year, or a career. A child can perform well in a game without developing (big kid dominating through size) and develop significantly across a season without a standout performance. Development is the slower, more important measure.
How do I know if my child is actually improving?
Look for patterns across multiple games rather than individual performances. Are they making quicker decisions under pressure than they were three months ago? Are they attempting skills they weren’t confident with earlier in the season? Are they enjoying training? Consistent engagement and gradual skill progression are the most reliable signs of real development.
If you want a way to track your child’s development across a season, ScorX is free to download. It records game statistics across 16 sports — including AFL — and helps you see your child’s progress over time, not just from one Saturday to the next.