I can see, I think, where the Op is coming from. As a woman in early 60s I do believe that the present younger generation is probably far more aware of sexual techniques and practises than we were at their age. I think they're probably also under more pressure, the use of mobile phones in school age children and online stuff is disturbing.
But I don't think it's right to make judgements on someone else's sexual behaviour. We perhaps might question it, in out own minds, but it's not fair to openly criticise the behaviour of consenting adults.