My 3.5 year old has been good with paper books since she was about 2, but my soon to be 2 year old likes to destroy them...so she only gets to have board books in her room. I will let her have paper books if I'm around, but just yesterday she was trying to color in one! LO1 really likes the character early readers, and those only come in paper form.

When did you switch to paper books, or when do you think kids are 'too old' for board books?