The problem with keeping your scheme in high school is that you're then dealing with actual legal minors who are very close to home. You're essentially trying to track young people whose brains aren't even fully physically developed yet, and something tells me that the parents of those children are not going to take the systematic closing of doors of opportunity so lightly.

I guess it kind of works in Europe and Japan. But then, Americans reject a lot of things that work in Europe and Japan.