Why do some Christian churches celebrate “Trunk or Treat” rather than Halloween? It is because some denominations are strongly opposed to the idea of Halloween because they think it is honoring the devil. They also are concerned about the safety of their children knocking on strange neighbor’s doors asking for candy. So they want to find a safe alternative.
Instead of having “Trunk or Treat”, perhaps would be better not to have anything at all. “Trunk or Treat” still gives reference to Halloween. Perhaps have a harvest festival if you have to have something. To observe even part of a holiday that you are opposed to is still acknowledging it. Referring to it gives it credence. If they are truly opposed to it, then don’t have any festival of any kind on Halloween or in the week before.
But there are other things to consider. As to worrying about the neighbors, remember that part of being a follower of Jesus means that you should treat your neighbors as you would like to be treated. So you want people to be afraid of you and to never talk to you? If not, then why would you treat the neighbors like that? Why is it that Halloween is the one time of year where we are encouraged to talk to our neighbors? Halloween is a great time to be a Christian. You can meet your neighbors and make new friends.
Another problem is that there is no “trick” in “Trunk or Treat”. It is all “treat”. There is no risk of anything unusual happening. The risk is part of Halloween. Halloween is about things being different, where the unexpected can happen. It is about acknowledging that we aren’t in control of our lives. This too is in line with the words of Jesus, who reminds us constantly that God is in charge, and we aren’t.