Actually, in a discussion in one of my sociology classes this semester I was one of only three or four people (out of forty or so) who had sex ed in school. So the catholics did a good job there. We also had evolution in biology classes and learned a little bit about world religions in history. We had required Mass once a week and we said a prayer in Latin at the beginning of Latin class. Religion class was mandatory every year, but it was pretty much a blow-off. There were/are some ancient nuns who teach in the elementary, but the h.s. teachers died out I guess.