I guess I don't subscribe to the twee school. I remember trying to lose our copy of Thomas the Tank Engine before I had to read it again. Life is a more dimensional and interesting affair than vestigially Victorian notions of childhood. I was trying to make something substantial, something to be read and reread.
On his book Jack and the Box, as quoted in "Smart Art : Spiegelman doesn't dumb down for kids" by Alexandra Zissu in New York Magazine (16 November 2008).