Women get unwanted pregnancies by not being educated or misinformed about how sex works, so sure, educate everyone in Sex Ed . But women get unwanted pregnancies in lots of ways that Sex Ed won’t stop, including failed contraception and rape. And there are a large number of reasons to have medical abortions available including ectopic or other high risk pregnancies. Hence the poster relying to you saying both is fine, but “just” Sex Ed is a terrible idea.

It’s not stupid. Anyone reading needs to know where a statement or conclusion comes from in case they need to check and see how that conclusion was reached in the first place.