I think it's that and a sort of equal-and-opposite prudishness reaction - those sex scenes no longer fly in mainstream movies, they are generally described as e

I think it's that and a sort of equal-and-opposite prudishness reaction - those sex scenes no longer fly in mainstream movies, they are generally described as exploitative of the actors (particularly women) and inappropriate in various ways. To paraphrase something I read on the daily mash - OK, sure, you young folks feel free to shame us gen Xers for getting our teenage kicks from a glimpse of breast in 'that scene' in an action movie... but in the 80s and 90s we didn't have a device in our pocket that could show us the most extreme filth at the touch of a button. (That all said, nudity does seem to have had a big resurgence in tv in recent years)