Out of interest how are the junior leagues set up in Engalnd?
Over here my lad has played for the local team for a few years, and from U-10 level they were playing 11 a side on full size pitches with full size goals, albeit for a reduced 30 minutes each way. To me it encourages kick & rush style of football, and aiming high at the goals to get the ball out of the reach of a 4'6" keeper. Another favourite tactic is to push everyone forward & mark the defenders when the oppostion have a goal kick, knowing the keeper can probably only knock it 20 yards & not very accurately. There is also very little rotation of players through positions, so you get earmarked as a defender, midfielder or attacker very early on.
I was told in Italy they play 7 a side on small pitches & after every goal the whole team rotates positions (mandated by the ref) - seems liek a much better idea for me, at least up to U-14 level