While I agree with you, my parents did raise 4 boys. None of us are gay. We are all married, well off, and none had sex in high school. We were not Christians either. We were raised the old-fashion way. No church group. No scout. My parents was very watchful over our activities...my mother knew my whole schedule in school! No, they were not overbearing, but I also knew the grave consequences of doing stupid things...they gave me enough ground to grow, but I knew my limits and the consequences of going over it.
Does Plan B lead to more sex? I don't know. You don't know either. Brushing it aside as an impossibility is not good either. It is a social experiment that will teach us down the road. Does it lead to medical issues? We will find out from the folks that take it regularly. It is a medical experiment as well. Who will pay for all this and the consequences? Me, you, kids, etc..
Of course, as noted above, some liberal folks are pushing for Plan B for ALL AGES. Nice. 1engineer, your kids are grown up and doing well...you're lucky. It sucks when you are the parent of kids that are about to enter this world with today's wide open sexual policies.