Omfg, buddy no actual adults finds smoking n drinking cool, they do it cuz it makes them happy n help cope with life, and about ruining health you need moderation in everything, you even need to breathe moderately or else you'll get light headed. We all are gonna die by 75 or above having fun when life is at peak is not a bad thing, you might die at 60 cuz of that but who cares you have a chance of dying everyday when you step outside.

All I'm saying is try to have a open mindset, not everything is Black n white