You don't seem to understand America -- kids don't play soccer because they love it, they play soccer because their parents want them to play it. And their parents want them to play it because they (the parents) don't understand the game enough to know when the kids aren't playing well.
This is precisely why the kids stop playing as soon as they outgrow their parents.
Drive through any suburb in the US. You might see a father playing baseball catch with his son in the yard, playing basketball with his sons in the driveway, or tossing a football around with him.
In my entire life, I've never seen a parent kicking around a soccer ball in the front yard with a son or daughter (actually, I can't remember any kids playing soccer "informally"...in the US, ALL soccer is played as part of organized leagues. Kids basically never get together to play it on their own on a field, unless they're recent immigrants or something. Sadly, baseball is going the same way, but you'll still see neighborhood wiffleball games and such.)