I totally get the not wanting a leadership position thing. I am always asked to be Ward Mission Leader or something similar due to management background, and sometimes I just want to get into a ward and be Brother Joe Schmo and not have a calling, and not have to manage when I don't have to be managing for work.
This brings up another question, why the compulsion to create callings just so everyone has one? We had an assistant 2nd Sunday Deacons Quorum teacher. 2 of them actually. Is that for real? They had a lot of younger families, so a glut of younger elders (20's and 30's) and so they had a 1st Sunday teacher, 2nd Sunday teacher, and so on, for a deacon's quorum of about 8 boys, same in teachers and priests, while the primary had close to the population of Rhode Island with well over 25 sunbeams and had a few tandem teachers and that was about it. Sometimes I felt like it was silly to put me in as assistant to the assistant facilities guy while we had 3 guys called as the facilities guy in the ward (true story), and did not feel one bit closer to anyone in the ward for it, not any more included than if I just went to my meetings and participated and was a nice guy.
Why won't they sometimes just let us be members and allow us the opportunity to actually volunteer for things (like scout camp helper, or unofficial "mover" or cook at ward picnics, etc. all of which I have volunteered for at one point or another and more) rather than being pushed into a meaningless "service" position just so they can say everyone has a calling?