Children in the St. Louis area have been going trick-or-treating on Halloween at least since I was a kid growing up in the 1950's and they still do it. We had about 60 trick-or-treaters come to our front door this year and we passed out bags of candy. In recent years some neighborhoods or groups have been organizing trunk-or-treats at school or church yards usually on the Saturday evening before Halloween which have also become a big deal. To participate with your trunk full of goodies, you have to be vetted and assigned a space on the parking lot. Kids come freely or are dropped off by parents.