Even though the same kinds of things still go on (and really always have gone on..), it's the attitudes towards them that have changed over the years... things that used to be scandalous in my day, are now either ignored, championed, or pushed on the youth of today.
They are pushed, at many secular colleges, by the administration ... my own alma mater passes out condoms to students (I don't mean they're available, I mean they're issued to everyone as standard equipment in a "personal survival pack") and had a quasi-pornographic mandatory "sex ed" program for incoming freshmen, which featured both simulated nudity and raunchy language.
This is feminist ideology in action, trying its best to undermine marriage and ruin girls' (and boys') lives. It's not just college kids acting up. There are feminazi professors out there who call hooking up "revolutionary," supposedly because it teaches girls to use boys as sex objects the same way boys use girls. That's supposed to be "liberating".