Please do not assume that kids are older than they really are,my son now 14 just grew at a very young age by 11 he looked 13' I had a parent run after us after a game asking how old he was,this actually happened on 3 occasions, now he is average for his age,the issue being some boys have a huge growth spurt at 11 while others don't until they are 13,so please never assume a kid is older just by his looks,