I don't think anyone has touched on a fundamental truth. Shooting is fun... physical activities are fun... at least they are to me and just about everyone that I know. One of the main reasons I shoot is because I enjoy it. I work out (Actually, I hate that term. I "play out" and it is SOOOOO much better.) because I enjoy it.
Food for thought. Orienteering. It combines land navigation, hiking, and physical activity into one of the most fun things to do in the woods. Plus, all those skills come in handy in hunting, self-defense, and overall fitness- physical and mental.
Trigger control: The skillful manipulation of the trigger, which causes the weapon to fire, while maintaining sight alignment and sight picture.