Thus, they believe, if a child is scared by a haunted house zombie or spooky witch costume, his or her natural curiosity will soon lead them to read books and watch TV programs on the things that scared them - dead bodies or witches, for example. According to Phillips and Robie, this will start children on the road to Satanic practices.
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Of course, it's true that Halloween practices - like Christmas, Thanksgiving, and other holiday practices and rituals - have a historical context and make use of certain symbols, foods, music and so on. However just because there exists a long history of real, genuine witchcraft claims - such as those that resulted in the infamous Salem witch trials of 1692 - doesn't mean that any child who sees a green-skinned, pointy-hatted witch costume will become interested in magic or witchcraft, much less become a witch.
Unlike concerned adults who read sinister meanings into things they fear or shun, children tend to take things at face value. They are more concerned about how much candy they get - or how good their costume is - than whether their black cat lawn ornament is really an invitation for Satan.