It's probably a combo of the legit science that there really is no safe/good level of drinking from a health perspective (and previous studies saying otherwise are bunk), and all the podcasters/influencers extolling the virtues of not drinking.

Why We Sleep really impacted my view on drinking. It really does mess with your sleep, so I keep my drinking to occasional and on the light side.

Wearables also play a role in this. I had two beers between like 5:30-7:00 on Saturday and my sleep data was messed up. We are talking two 5.5% beers at dinner on a 220 lb man.

It's much harder to ignore the fact that alcohol has all these negative effects.

Still, I think drinking occasionally while socializing is a good thing, and that people becoming hermits is a huge negative.