Personally I would not trust any man over the age of 22 (as in: graduated from college partying) who gets drunk on weekends (you said he doesn't HAVE to, so I assume that means he does when he wants to) and does his socializing in bars.
As a recovering codependent, I could never be with someone for whom a bar is recreational therapy. I have experienced too much pain and deception from adult men who like to drink.
Hoping you stay safe.