A registry of kids who have sex will turn out to be a registry of kids who are CAUGHT having sex, or maybe even just a registry of pregnant girls or kids with STIs.

That's the most ridiculous thing I've ever heard.

On the other issue: I grew up being taught creation at home and evolution & big bang theory at school. I didn't have too much trouble deciding which one I wanted to believe in. Home and family took first place. So I just went along with science class, filling in the "right" answers on the test while in my mind realizing what I really believed. It wasn't a problem. My friends did the same thing. We didn't try to mandate the whole school be taught what we were being taught at home. We realized we were in the jurisdiction of the state, not the confines of our church.