As Reggie Joiner comments in his book “Think Orange” when all the church has is criticism in against the 4-H Club (Hollywood, Halloween, Harry Potter, and homosexuality) then the church has lost its mission. Having opinions and convictions on those 4 topics is fine and even necessary, but being against a bunch of stuff is not the most effective way to advance the kingdom. Even when it is necessary to be against things, the church must still find a way to be for relationships.
As I’m sure you are aware, Halloween is not too far away, and I know that Christians have varying degrees of conviction about the day. Some think it is an entrance to Satanism and the occult while others consider it national candy and dress up day. I have no intention of binding anyone’s consciences towards either viewpoint.
My encouragement, no matter your conviction, is this. Please make Halloween an opportunity to get know your neighbors. Rarely do communities make such efforts to interact with each other. Getting to know your neighbors is in no way evil even if you feel strongly that the day is. But I would offer that giving out candy is no more worshiping Satan than giving presents is worshiping Jesus.
If you don't give out candy, please don’t shutter your house like it is an abandoned home. Find some way to interact with the folks who come to your door or are walking on your street.
If you do give out candy, give out the best in the neighborhood so that everyone wants to come to your house again next year.
Either way, have fun.