If you continue to post unsubstantive and/or flamebait comments to HN, we will have to ban you. You've been doing it a lot, and it's not what this site is for. Please review https://news.ycombinator.com/newsguidelines.html and fix this.

Actually your account appears to be using HN primarily for political/ideological battle. We ban that sort of account, so please don't.

Why do you immediately conclude it hasn't?

Far more likely are these factors:

- education reaches only a small part of the population

- condoms are unavailable

- condoms are too expensive

Don't forget well-justified suspicion of westerners based on horrible and not too distant history.

Because it got drowned out by misinformation.

same reason why education has not prevented covid-19 from spreading.