They have this in Scandinavian countries, and I 100% support it ... as long as abortion is legal. If a woman isn’t able go back out of a pregnancy, a man shouldn’t be able to either.
Except women are slut-shamed for doing much less than “sleeping with dozens of prostitutes”. Men can get insecure over just a couple of serious past relationships, not to mention a dozen Tinder hook-ups. That’s why there’s a push to get men to realize that it doesn’t matter what somebody’s body count is.