Do you read books “meant” for other age groups? Adult books when you were a child; Young-Adult books now that you’re grown; Picture books just for kicks … You know … books not “meant” for you. Or do you pretty much stick to what’s written for people your age?
Absolutely! Age is just an arbitrary number. (And yes, I realize I say this as I’m over the moon that I’m no longer a teenager.) That’s why I added my handy dandy audience categories—children, young adult, or adult. In fact, Malinda Lo’s Ash was originally written for an adult audience—I don’t believe she mentioned a particular reason, but with anything non-hetero getting slapped with a mature rating for even showing two characters of the same sex kissing, I think I know why. But her publisher decided it was a better fit for the young adult market, and it was marketed accordingly. So the difference between a young adult novel and an adult novel is actually pretty nebulous and arbitrary; there’s no reason to scoff at either audience.
To be wholly honest, I don’t read a lot of children’s books and I don’t read picture books; novels are my bread and butter. But if there’s a good one recommended to me, I’m not adverse to picking them up.