" this sort of thing from being high or drunk or tripping - and skinny dipping, nudity, blowjobs, group sex, orgies, and gang bangs are not the least bit new - it was not uncommon then either" We must've grown up in different countries, because I was born and raised in So California and I didn't see any of this ... skinny-dipped once in college and accidentally walked in on a flagrante delicto couple at a party. I think you had a much more dissolute life than most.
"difference now is it's on someones smart phone posted to the world in real time" No, the difference is that girls are sluttier today yet do not want to be told that. In the 1970s, a slut was a slut and they were few and far betweeen. Today, 50% of girls hook up but want to think they retain a shred of purity. They don't.
Boy's haven't changed. It's the girls that have. Girls becoming sluttier have just made it easier for boys to get the milk for free (to those of you who don't know old sayings, "why buy the cow when you can get the milk for free").
That’s a good point about much of the change as being with the girls. It’s a big part of it.
But I still think there are some new things going on. The whole trend about teens taking pictures of their privates, while even diddling with them, and sending them all around. Or instances of students having oral sex in the classroom in front of fellow classmates. Or, how the whole grave topic of something like child-molestation is now a common butt of twitter jokes amongst the teen crowd. Things like that, to the whole mentality and worldview of earlier generations, are so mind-bendingly inconceivable. It’s less about “sex” as it is some kind of bizarre, monstrous cultural depravity.