I never had a sex ed class, in elementary school we had a "get to know your body" thing which were taught with males in one room and females in another, and on the freshmen year of high school, sex ed was on the plan in in our health class we had to take but it never amounted to more than a couple days of "sex can put you at risks for stds and pregnancy" and then the teacher would explain shortly what to do and not to do in relation to protecting yourself and shared a couple stories of students lives going bad due to sex. It was only a couple days and very brief at that.