Child protagonists for adults

Here’s a proposition: a story can have a child protagonist without necessarily being for children. Extremely Loud and Incredibly Close, for example, unfolds through the thoughts and experiences of a nine-year-old, but the story is not for nine-year-olds. Same with, say, Romeo and Juliet. The protagonists may be mid-teens, but I’ll bet Shakespeare wasn’t setting out to write a drama solely for the under-twenty crowd. Romeo and Juliet, like To Kill a Mockingbird and Huckleberry Finn, has migrat...