Why do kids trick-or-treat in the daylight on TV or in movies?

I noticed that in a lot of TV shows and movies, kids trick-or-treat in broad daylight. Does anyone know if this is simply a filming convenience (since it's more difficult to film in the dark), or do different parts of the country have different traditions? I'm from New England, and while a few very young kids might come to the door at dusk, trick-or-treating is definitely an after-dark activity. Just curious, since those daylight scenes have always looked so odd to me.