Its not demographics, its American cultural influence.
My personal theory is that they are scared of ending up on the Internet when they don't have control.
This is more like alcohol apathy - not drinking, but also not explicitly anti-alcohol. That the more generational shift in Gen Z that I've seen. But, those sentiments can certainly change over time.
1. health concerns mean moderate drinkers drink less, but heavy drinkers have not changed their habits 2. young people seem to go more to extremes: either drink a lot or be teetotal.
Now, I agree that’s not the only factor — there’s something else going on reducing alcohol consumption even in people who’ve never taken GLP-1RAs — but when you have >10% of the population taking them, that’s another significant factor contributing to falling drinking rates.
Of course, there are still people who go out and have a good time, or who grab a bottle on the way home from work. But as with most things these days, there's been a socioeconomic bifurcation that has split the fertile consumerist middle into haves and (mostly) have-nots. And the have-nots aren't bothering.