I'm disappointed that airlines aren't more robust about excessive drinking. Surely flying with intoxicated people on board compromises passenger safety and possibly that of the aircraft. Not hard to imagine that an emergency evacuation could get much more difficult with drunken pax. It would be sad if it takes a mention in an AIB report to change things.
Having no air side sales of bottled alcohol might help. The 'duty free' stuff never was a bargain.
No easy answers.
STAN37