My son (8) has recently got into the HP audio books (the new full-cast editions) and he is LOVING them. He’s just started listening to book 3, which, in my opinion is pretty dark, especially the lake scene towards the end. I’ve warned him it could be scary for him but he’s confident he’ll be fine. He’s already talking about starting book 4 (Goblet of Fire) as soon as he’s done with PoA.
Although I think I was only a few months older than he is now when GoF released and I read it as soon as it came out and don’t remember being scarred by it 🤔