As someone who often has gotten gifts of food I end up regifting (one allergy, many food aversions) I don't disagree that it would be awesome to have a more default that isn't food or alcohol. But that doesn't change the fact that currently it is. My previous job we tended to do gift cards for the local coffee shop which I liked better (yes it was still kinda food but it was also more flexible and also still regiftable)

I think of it as being like the blue pumpkins for Hallowe'en. It's awesome to spread their use and for growing numbers of people to actively signal that they offer non-food treats for trick or treaters, but that doesn't change the fact that the default treat in a house not signalling otherwise with pumpkin use is likely to be chips or candy.