I can understand maybe making someone sit because of their grades if it is a school sanctioned team, but this? Most schools have academic stop lists for players that aren't doing well.
Why is it your responsibility to prepare these kids for their future? That's what the parents are for. If I was paying for my kid to play/learn basketball, I wouldn't be too pleased either if you were imposing requirements on them that have nothing to do with the game.
Not trying to be harsh. I just don't see the significance.