In this old(ish) video from Laci Green, the host of the youtube talk show Sex+, Laci talks about abstinence education.
Where I grew up we were only taught abstinence in our extremely brief sex education class (When I say brief it was part of our gym class that only had health every other Friday, and only three of those Friday's were "sex education." The other Fridays, were just us reading summaries oh health related articles we found online). We watched videos of white men speaking in front of entire high schools on why none of us should be having sex, without really going into details. And all of these videos have stuck with me in a negative light. (In one of the videos, the man speaking on stage pulled out a rose and asked the audience if they wanted it. Majority of the students raised their hand as it was a fresh rose, completely in bloom. He then started to pull of petals from the flower to the point it looked beat up as if it was in a storm, and then asked again if the students wanted it. The students said no. He then went on to talk about how a full bloomed, fresh rose was a female's virginity and that the more times she has sex the less desirable she will become.) Other than being shown those strange videos, we were shown pictures of STIs on genitals with little to no commentary other than what the STI was in the picture, scaring us to not want sex. My classes spent almost no time into actually discussing what sex was or how it worked, let alone talk about the male or female body, especially something like the hymen.
Safe sex education is extremely important to any form of sex education as just teaching kids that they just shouldn't have sex is honestly not going to help matters in the long run if those students decide that no, they will have sex if they want to, or in the long run if they do choose to wait and they don't know what they're doing.
Laci Green's videos are great into going into these discussions, and I highly suggest watching them if you are unsure about things on your body, if you think your fantasies are /weird/ (they're probably not), or if you just want to learn something new.