FWIW, IMO, YMMV- Alcohol in excess has done more damage to more lives than a lot of things that are less legal, and less mainstream.
Just need to look at the UK for this. Fighting on street corners at kick-out time is terrible here. The government thought that if they make t24 drinking law like the rest of europe, it would cut down on "Binge drinking" as they could spread out the same drinks over a longer time. FAIL. They just extended their "binge" longer, making it worse.
The problem is the UK is different from all other european countries culturally. The rest of europe knows this when they see British Tourists in their countries acting the same.
They legalised somehthing you can smoke in Brixton, London as a trial for a short time. They stopped the trial however, they did report findings.
Basically they found huge % increases in things like Pizza orders and misdirected Pizza orders. No fighting.
I dont smoke anything myself but I did find that quite funny. Of course there are underlying psychological issues that are associated with that.
I suppose Alcohol has long term effects and immediate effects (Depressant, impaired judgement, aggressiveness) where as the other tends to lean more heavily towards the longterm effects.
Many things in moderation is fine, excess is always going to be the end of you.
Its a hard argument the under-age thing though as this is an international forum and the OP is not underage to drink where I am from.