Dude, you're confusing drinking and getting drunk. I've drunk several times in my life and never, ever gotten drunk. Every time in this post, where you refer to 'drinking', you actually refer to people getting drunk.
I know people who don't drink for moral reasons or personal reasons (eg, a friend whose father was an alcoholic, so he refuses to drink alcohol now) and I'm cool with that. But all your reasons are in relation to getting drunk (losing inhibitions, de-stressing, loneliness, etc).