No seriously, pull a Mass Effect Citadel thing, imagine sauntering up to some random bar in the Tower, tossing a few back and eventually staggering out the door dry heaving and swaying while the world tips and bends around you and having the option to "annoy" other guardians and pick fights... Or just the option to do stupid shiz like that. No but seriously, bars in Destiny Tower, I'm just saying.
-
Probably because the internet activist warriors would go nuts, because it's a T rated game. They'd somehow come to the conclusion that bungie was encouraging underage drinking by letting teenagers watch their centuries-old zombie guardians unwind a bit after a long day of thrashing the darkness (or each other).