Cory Doctorow on the joys of writing for teenagers:

That's one of the most wonderful things about writing for younger audiences — it matters. We all read for entertainment, no matter how old we are, but kids also read to find out how the world works. They pay keen attention, they argue back. There's a consequentiality to writing for young people that makes it immensely satisfying. You see it when you run into them in person and find out that there are kids who read your book, googled every aspect of it, figured out how to replicate the best bits, and have turned your story into a hobby.
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young people live in a world characterized by intense drama, by choices wise and foolish and always brave. This is a book-plotter's dream. Once you realize that your characters are living in this state of heightened consequence, every plot-point acquires moment and import that keeps the pages turning.