All of the above! I train for health, looks, strength, and while I don't compete in actual competitions, I do enjoy competing with myself.
I train because it's fun. To some, the gym is like a torture chamber. To me, it's like a giant playground. Training makes me feel like a kid. (To tell the truth, I feel
even better than when I was younger!)
I'm training for old age too. Our bodies are finely tuned machines meant to work and move, not rust and rot. I want to be a wild crazy old lady. I want to die LIVING (like maybe out skydiving), not live DYING (stuck in a nursing home).
And finally, I train because I can. And because I
can, I feel I should. I've got just one body on loan for this lifetime, so I better take care of it. I gotta wear it and live in it every day!