PAPA ...sometimes your statements are made without a sound basis... Although I agree that many adults push the kids in the wrong direction, I do not agree with your European comments. The players in Europe come out of the academies of the professional clubs, this is akin to minor league Baseball.
Traditional American sports require certain characteristics, (Football and Basketball size for example) which you can wait for as the player grows up.
Baseball on the other hand (I am not a fan)requires more skill earlier, which means earlier introduction. But you can still wait for the athlete.
It is my experience that pure Athletes cannot catch up in soccer as quickly as some believe (except goalkeepers = Hands ...i.e football, basketball, baseball). Early introduction to ball handling is key. so developing the player early on is necessary....
Now Mom and Dad going crazy on the sidelines is a different issue.