Banning of colas in schools ---- how practical is it?

I realize that some kids will just find their sugar fix elsewhere and that they do need to be educated more but I still think removing the pop machines from the schools is a great idea...at least its a start ya know...more than the schools teachign the kids though, its really up to the parents to do that...this new learning should be taught at home....My kids love pop but I dont buy it, they arent allowed to have it at school and if I find out they have they're in big trouble adn even when we have take out like McDonalds etc they rarely get to have pop with their meal...I know SO MANY parents that actually are the core cause of their kids loving pop and crap foods which is a real shame...its really not up to the school to educate the kids on that sort of thing solely ya know...its more like the parents need to get a grip and stop feedign their kids this crap in the first place IMO