With Sirius' death, Harry now probably owns that house. (And the shrewish portait and possibly the Elf) and whatever money Sirius had in his Gringott's vault.
Okay, sure, from some povs, it should be for Remus, but that's not how things work.
A house. More money. This is major in a world where seventeen is adulthood.
In other news, I just got a phone call from my mother, who is visiting my brother and his family. My nephew is eight. He's a bright kid and a good reader.
He's reading GoF. His parents haven't read it first. And I suspect they'll ignore my advice and let him read OotP without reading it first, either. Since, you know.
They're kid's books. Which means that A. adults shouldn't read them and B. they're safe.
Then again, I'm not sure about Debby's reading level.