Well, some cities not only suggest an age, they will send kids over the "legal" limit to jail for dressing up and going door-to-door looking for candy.
Let's start in Chesapeake, Virginia where anyone over the age of 13 who is caught trick-or-treating can be sent to jail for up to 6 months, and fined!
In Newport News, Virginia, kids can trick or treat until 7th grade or until they turn 12. After that it's a misdemeanor.
Several North Carolina cities have similar legal restrictions for 12- or 13-year-olds, as well as 9 p.m. curfews for all.
And in parts of South Jersey the curfew is 7 p.m., with kids in Upper Deerfield Township also being told 12 is the official cutoff.