I've often wondered if that isn't the best thing for these kids. With as many games as they play now, the late bloomers may be the kids kids to step up in HS, while the 10 yr old studs never make it that far.
I've seen plenty of kids pitch in a league game on Tuesday, throw a few innings of select on Saturday, then pitch the championship game on Sunday. Kids arms aren't designed to take that kind of abuse. Not pitching until now was probably the best thing for him. If he can get with a good pitching coach to fine tune his mechanics, he can be very successful.
Maybe I'm just old and played before select baseball came around and parents started paying $75 an hour on pitching lessons for 8 year olds. I do know that we faced major league pitchers every week in district which you don't see now.