I think the parents still need to know. As I said before, if the birth control fails, who is going to have to take up the financial burden? And most parents are at least reasonable and won't beat their kids if they find out they are having sex. Parents deserve to know. They deserve a chance to try and persuade their kid otherwise. And they can sure make it harder for their kid to have sex if they keep them from going out. May sound harsh. But it's a parent's right.