You're totally right! Harry Potter has all those learning! Is a very productive reading for our children :). And like you said, the most important part is to have a book that has an interesting story for them, they don't need the classics at that age. Any book that can help to create the reading habit is welcome, and if it has a lot of life learnings as Harry Potter is also better :). We have to encourage them to read for pleasure and not because they're being forced at school, and the Harry Potter series can be a way for it.