Maybe because I am more into science fiction than fantasy 😁.

For one thing she has superpowers. She is super strong. She has no fear. She takes drugs for fun (in one story she eats a poisonous mushroom and tries to fly). Her dialogues with adults are often from a position where you could think, she knows way more than she says.

I like it. Did you know, that Pipi Longstockings is an alien?

Inception levels deep into history of arts.