Yes, sometimes. I don't think there is anything wrong with reading children's books, especially if you also read adult books (I enjoy reading about any subject, from astrophysics to AI, to literature, etc). But one day I was looking at a children's book I thought looked really cute, and my aunt said: "come on! you are too old for that! You already have hairs in your legs!" I just looked at her in an inquisitive manner and continued doing what I was doing.