"Oh, we do! We even mine the air, not literally, of course, but we've got some very profitable and effective concentration and refining programs. It's just that theres a lot there to go through."

She reddens little, ducking her head. "It just....feels safer. You get used to it, and after a long time, it feels crazy to be without it. Because what if something happens? Some people even sleep in them."

"Also, I get cold super easy, and it makes a really good coat."