You can have a based city, you just need to not put up with shit. Just look at Tokyo, or the multiple cities that make up Tokyo, they're rather comfy because the Japanese don't fuck with the shit the West does.
Edit: People trick or treat beyond Middle School? What?
Also, Trick or Treat has become a corpo thing now, most people take kids to businesses during the day now. I was at a bank when a bunch of kids came in to get candy at 3pm. It was weird.