Then something changed. In the second half of the twentieth century, and particularly post 1970, we begin to meet children who are intrinsically magical. Ged. Will Stanton. Mildred Hubble. The Chants (Christopher and Laura). Buffy. Harry Potter. Percy Jackson.
First, is this even true? It's top-of-the-head stuff, and there may be many counter-examples I've not yet thought of. I suspect things are fuzzier in humorous texts, and in ones set in secondary worlds. (I'm wondering about Dorothy, for example.) But if there is any truth to it is it significant, and if so, of what? Does it reflect changing views of children and childhood? The rise of superhero comics? Different attitudes to magic itself?