One factor that's important not to overlook is that younger people, especially in developed nations, are drinking much less in recent years, even after the COVID-19 lockdown. [1] It's just not really fashionable anymore. Everyone I know under the age of 25 or so, and (A smaller amount of) older people I know as well who have grown out of thinking being drunk is fun, are looking at it more as a quick way to get fat and sad.
[1] https://www.ucl.ac.uk/news/2020/sep/analysis-our-survey-show...