Back in the days, a scene with someone taking cocaine was always dark and sordid. The guy was obviously the bad guy, and it ended pretty bad for him (or her, as in pulp fiction for example). Fast forward 30 years and you now regularly see scenes of people doing hard drug as a mean of having fun without any kind of repercussions. It is totally absurd.
I've always wondered if that wasn't a symptom of some kind of infiltration of the drug cartel into the movie industry. Holywood is now basically routinely showing ads for hard drugs.