I'm not sure about required, but depending where you live most of the stuff that's open at night is drinking-related ie. bars, pubs and clubs. A table full of p

I'm not sure about required, but depending where you live most of the stuff that's open at night is drinking-related ie. bars, pubs and clubs. A table full of people in a busy bar only ordering Coke or water is going to be kicked out pretty quickly. If I wanted to go out at night in my city, and go somewhere that wasn't centered around booze I'd be going home around 8 or 9PM since nothing PG-13 is open late.