> The phrase "only abstinence is 100% effective" is a slogan for teens, not a claim that only abstinence only sex education is 100% effective (which is clearly false).
You're misunderstanding the point -- "only abstinence is 100% effective" is mocked precisely because it is a remarkably bad way to get kids not to have premarital sex.
You're misunderstanding the point -- "only abstinence is 100% effective" is mocked precisely because it is a remarkably bad way to get kids not to have premarital sex.