We treat our children to the fairytale of Father Christmas and the the Tooth Fairy, to the myths of a world as it might have been with magicians and elves and dragons and having filled them with these fantasies for a decade we tell them this is the best time of their lives. Why? Because these myths do not prepare them at all for the world of humanity in which they can be the worse monsters that ever lived. That life feeding on life is a principle of nature. That cruelty is more prevalent than kindness.
… and so for many, getting back to childhood is their adult life.