I’m gathering that this quote comes from someplace else, but I found it on an article about the creator of Buffy, Joss Whedon:

ultimately, stories come from violence, they come from sex. They come from death. They come from the dark places that everybody has to go to. . . . If you raise a kid to think everything is sunshine and flowers, they’re going to get into the real world and die. . . . That’s the reason fairy tales are so creepy, because we need to encapsulate these things, to inoculate ourselves against them, so that when we’re confronted by the genuine horror that is day-to-day life we don’t go insane