Adults sometimes grumble about Halloween — the annual festival that brings hordes of kids to front doors, decked out in cute costumes and dreaming of handfuls of candy.
But when are kids too old to go trick-or-treating? In some U.S. towns, it's illegal for teenagers (and of course, adults) to indulge in the sweetest part of Halloween. That's not to say there's a consensus: even the towns that impose age limits don't agree on the "proper" age for trick or treaters.
