I don't remember my parents together, ever: my father was much older, and really only interested in collecting magazines and bathroom suites; we were the only family in the area to have a bathroom suite on the lawn. ↗
It's this simple law, which every writer knows, of taking two opposites and putting them in a room together. I love anything with Cartman and Butters at the same time, it's great. ↗
After assembly complete, when we have a larger crew on orbit, a more complex vehicle, more laboratories and more robot arms, maybe we'll have room for specialists. But right now we don't. ↗