It is usually assumed that children are the natural or the specially appropriate audience for fairy-stories. In describing a fairy-story which they think adults might possibly read for their own entertainment, reviewers frequently indulge in such waggeries as: “this book is for children from the ages of six to sixty.” But I have never yet seen the puff of a new motor-model that began thus: “this toy will amuse infants from seventeen to seventy”; though that to my mind would be much more appropriate. Is there any essential connexion between children and fairy-stories? Is there any call for comment, if an adult reads them for himself? Reads them as tales, that is, not studies them as curios. Adults are allowed to collect and study anything, even old theatre programmes or paper bags.

[…]

Among those who still have enough wisdom not to think fairy-stories pernicious, the common opinion seems to be that there is a natural connexion between the minds of children and fairy-stories, of the same order as the connexion between children’s bodies and milk. I think this is an error; at best an error of false sentiment, and one that is therefore most often made by those who, for whatever private reason (such as childlessness), tend to think of children as a special kind of creature, almost a different race, rather than as normal, if immature, members of a particular family, and of the human family at large.

I feel that tabletop RPGs have the most potential in the hands of adults. It's a shame that the design and aesthetic of them largely targets young audiences these days.