You’re right it is easy to understand that she was talking about MYTHIC and FOLKLORIC magic not occult magic. READ YOUR OWN QUOTE AND STOP LYING.
“she was talking about MYTHIC and FOLKLORIC magic not occult magic.”
She said she was asked by children who much of the magic was “real”.
“Children often, often ask me how much of the magic is in inverted commas “real” in the books in the sense that did anyone ever believe in this? I would say - a rough proportion - about a third of the stuff that crops up is stuff that people genuinely used to believe in Britain.”
You just don’t want to see it.