They are probably aiming at children. Someone who is 10 now will be 20 in 10 years and already primed propagandised to support the next massacre. Can't think of any other reason for something so ridiculous.
Are current children even aware of Harry Potter? The last movie came out over a decade ago. The last book is from 2007. I don't talk to a lot of kids though.
yeah it's still popular with children. not as popular as it was but it's easily accessible due to the proliferation of books and movies. Lord of the Rings is also still popular and it's not come out for a while.