Serious question, I have no idea. Is there an established tradition, sequence of events, rule?
I just asked some kids, and they said they’d come later and secretly do some trick on me, but they didn’t seem too sure about it either.
This in Europe btw.
It’s not the kids who choose. They say “trick or treat” because if you don’t give them a treat, they will trick you. By vandalizing your house. That’s the tradition.