Why does it have to be politics? Is there a dynamism to that world and a theoretical capacity to do things that draws many talented people? Absolutely. Are there other ways to be involved and lead an interesting life? Of course.
I have also Post Traumatic Stress Disorder, and I wouldn't have survived that if not for music. So I think for me, music was a soothing thing and it was also a place where you could say all the stuff that you couldn't say anywhere else.