Jonas , what a wonderful and encompassing description of the joys in our common cause! Of course we strive to make the world a better place by tirelessly and selflessly belting one person at a time!
Well, maybe there's some small percentage of intrinsic motivation involved in keyholding.
Aren't we defined by our social lives? Dance together, share our food, happiness and worries, tell stories, join for sports and adventures, find common ways to contribute to something worthwhile. Building up trust, deserving to be trusted seems to be at the core of friendship and any kind of deeper relationship, family or professional. Matching with a girl who desires to keep chaste, sharing this passion of youth, earning her trust with the keys, helping her through doubts, enjoying being shouted at, given excuses and argumented with (while still not hearing her safe word) - that's joy to me, and substantially more interesting than discussing my job, cars or soccer.