I spent five years in my early 20s refereeing youth football over here in the U.S. The thing about the sport over here is the age where kids leave the sport for something else. Sure, it's by far the most popular youth sport here. Everyone takes their kids to play, but "just for fun." There are tons of leagues for kids aged 5 through 12 or so, but the coaches (for the most part) don't know squat about tactics and sometimes don't know squat about fundamentals. So, you can get a kid who play youth soccer (football) for six or seven years, but who really doesn't know anything about the game except "Pass it to Timmy, because he's good and he'll score and we'll win.".........