The best wish-fulfillment fantasies are those that offer the most heartening moral support. The fact that many critics consider wish-fulfillment fantasies to be “children’s books” ought to be considered a compliment rather than an insult. The fact that adults can still read such books with great pleasure is not evident of such reader’s continuing immaturity, but evidence of the fact that the process of becoming a fully aware and morally competent human being requires a whole lifetime.
— Brian Stableford, Writing Fantasy & Science Fiction: And Getting Published
Just an interesting quote that reminded me of Avatar.