We do this - sort of. We live in a mansion block in central london so no trick or treaters here. We take the kids to a neighbouring part of London (only a 10 minute bus ride) where all the rich americans live. They really decorate their million pound homes and welcome trick or treaters. My dh took them late afternnon and they came home with an insane amount of chocolate and sweets. But dh said that all the people who answered the doors were so happy to see kids dressed up.
well if you are going to do it might aswel go to the area where it's done "properly" people who didn't decorate or prepare for it would have only been annoyed and not answered the door anyway, so yanbu
The Americans in the area we go to would be very dissapointed if people did not go. It is such a huge part of their culture (I grew up in the US) and I think they miss the experience when they are over here. I don't feel any guilt about taking my kids to their area.
In previous years one road close by to us has developed a reputation as the Trick or Treat hotspot - hoards of children descended on it. This year - barely a pumpkin. The residents have clearly Had Enough .