I think he intentionally limits himself out of boredom to make life more interesting.
I feel like that when I'm stuck in certain conversations and social settings. They could be all tedium that has already happened and will happen a hundred other times BUT if I hyper focus on the minutiae as if it were absolutely enthralling it provides comedy.
No I am not really comparing myself to Q.. I just think he's found some relatable ways of treading water only on a grander and more dangerous scale than humans can employ.