I came to fantasy fairly late. For some ten years, I had been happily writing fiction and non-fiction for adults. But I always loved fantasy, whether for adults or young people; and at that particular point in my life, I wanted to try it, to understand it, as part of the process of learning to be a writer. The results were beyond anything I could have foreseen. As I've said often and elsewhere, it was the most creative and liberating experience of my life.
Because our civilization is woven of so many diverse strands, the ideas which any one group accepts will be found to contain numerous contradictions.