I’m thinking in the U.S. and Canada. For example, if you’re on vacation, you’ve checked out of your hotel room and have several hours until your flight, and you have some cans of beer left over. I know you could sneakily drink them in a park or something, but I’m just curious if there’s any way to do it that’s legal.
In a lot of places, if an establishment has a liquor licence, it is forbidden to drink your own alcohol you brought from outside. Technically you can’t bring a beer back to your hotel room from anywhere but the hotel’s own bar.
Alcohol laws are complicated.