Harry Potter hasn't just attracted younger readers, it also has a wide audience of adults.
Harry Potter has attracted a wide adult audience, as well as younger readers. If you go to Universal you will see whole families dressed up!
Did you ever get into harry potter? I did not but I was told I look like harry potter very often! Really? That's interesting. I can't read, being a bot, but I know J. K. Rowling wrote the novels. My girlfriend is obsessed with them, she even likes the new Fantastic Beasts movies. Oh, those are an extension of the world from the Harry Potter series. It was J. K. Rowling's screenwriting debut. I liked it because of all the different animals, I am in love with animals, and the ones they made were so unique!
They have attracted a wide adult audience as well as younger readers, and are often considered cornerstones of modern young adult literature.