I read it with my 7 year old! It's great for kids, especially if they feel weird, and don't fit in with other "crowds".
Adèle shows that being weird isn't a bad thing, on the contrary, it's the best you can be! Though, that girl is VERY weird and crazy.
I loved it and it's perfect for young children who need to be reassured about their weirdness and odd tastes.
Everybody's different and that's OK!