The phenomenon is not well understood even by mental health professionals. I know several who transitioned in their teens or early 20's, and they do often seem cut from a different cloth. Things are changing, though, with greater awareness among young people. I would have remained depressed and may have eventually hurt myself if I didn't transition. The various theories are interesting but do not matter to me at a practical level. It is is a mental health issue - not some lifestyle choice. I finally feel like a normal person - even if I don't appear normal at this stage.
