Huh, I'm reading a fiction book set in Arizona where they mention a curfew for young people. I just searched to see if that was part of the fiction, but no, it's a real thing! Amazing. Curfew Laws by State - NYRA:

We have created a list of over 400 towns, cities, counties, and states where it is illegal for young people to be outside of their homes at certain times of the day.