I mean, just my personal opinion, but abstinence does need to be taught as a co-curriculum with a large portion of relationship education (particularly what a good relationship is/has, and what a bad relationship looks like and how to leave it), and stoicism and some other philosophies that demonstrate how forgoing pleasure (for some things, for periods of time) can lead to better outcomes. I don’t want my kid thinking they need to refrain from sex because it’s somehow immoral, but I also don’t want them to jump into every ‘relationship’ that comes their way in school and start having sex with someone who is just using them for their genitals.
I never said it shouldn’t be taught at all, the problem is the people that want only abstinence taught. I don’t necessarily believe that teaching stoicism to kids in high-school is going to do much. It’d be best taught around the age of 21 when the brain is closer to finishing development and the individual has better emotional control overall. Teaching about relationships will, as it always has been, ineffective because people don’t want to hear it from someone else, they want to experience it. And they will hold lofty expectations regardless. It’s good to demonstrate and show what abusive relationships look like, but beyond that people won’t listen. There’s a reason that it seems like the amount of abusive and shitty relationships never seems to change.