I kind of get what your saying, if i was in the military i'd be 100% commited no questions asked, i don't know what life will hold for me i could stay in the military for the rest of my life, or i could break my back tomorrow playing Rugby and that would be it for me.
Ideally an airline career would be my goal, but hey im not fussy AT ALL and any chance to fly i could get i would grab with both hands.