That's how I got hooked on Harry...
As I said, if parents read it and are comfortable with it, it is certainly their decision. I have no doubt that the Harry Potter books are excellent as evidenced by their success and I would certainly rather see kids reading a book than playing psychotic video games.
My husband got interested in them first, and then decided the appropriate-aged kids could read them. (I’d been resistant, more because of the insane-fad element than the books themselves.)
Then one night when I was up with the baby, I found “Harry Potter and the Sorcerer’s Stone” on the floor in the bathroom I never use ... and there was nothing else to read until I finally got Vlad to sleep ... and by the time I was able to go to bed, I really wanted to know what happened next!
“Deathly Hallows” (the latest) is the only book we own. We get everything from the library. As I said, I take the occult seriously, and I respect the opinion of parents who think these books or others are not right for their children. There’s no fiction so important that anyone is going to be harmed by NOT reading it.