You can't drink in a museum.
You can't drink at a park.
You can't drink in a lot of public places.
Why's that?
Because people can't act like fucking adults and so this has been banned in public places.
An airplane is a public place. It's a close quarter public place, where when one person fucks up, it fucks it up for the whole plane.
They get kicked out when they cause a problem, and don't cost the other 150 other people hundreds of $$$ and days of their time.
Alcohol is not the fucking solution to that, are you kidding me? Now you have have drunk people in a stressful situation.