matir asurim

I couldn’t care less on who drinks what. but for those of you who asked for a mekor I may be able to help. I never looked into it but I do know the misnah berurah in o”h siman 669 saif katan 17 says from the levush the minhag is not to duchan on simchas torah because it is commen people are drunk. What you want to learn from this I don’t care but we clearly see the minhag is over 100 years old