[profstasiak]

we can obviously use highschool logic for that, or we can see studies.

I don't really have time to go deeply into this, but here is your official government source saying that age limit for alcohol works by limiting deaths etc from alcohol use for people under 21

https://www.cdc.gov/alcohol/underage-drinking/minimum-legal-...

[d4rkn0d3z]

This study says that when you tell young people underage drinking is illegal then underage people report their drinking less.