Ahh, yes, the old studs/sluts thing.The issue is women are judged harshly for being promiscuous and men aren't.
Tbh, in my sub culture in my youth this wasn't so much a thing. I'm likely the exception, not the rule, even in NZ (which is largely more tolerant of sexualities anyway).
To continue to dismantle such things, I would like to think that education is key, but I think at best, education can plant the seed, nourish it a little.
I'd like to take a moment to thank the Baby Boomers for the sexual revolution. It made me able to live my youth more authentically. Out of curiosity, have you noticed the pendulum swing so far back the other way, North American peeps? Have the gains of the '70-90s been lost?