So... I was going through every household in my game to note down what jobs and careers all the sims have (OCD moment lol). What I noticed, of course, is that most pre-made sims are set with a base...
I don't care for premades that much, their jobs don't impact my gameplay in any way shape or form. When I place sims in my world I never bother to assign them jobs. I have the NPCC mod though so sometimes townies get assigned jobs like bartenders and chefs autonomously which is pretty neat. I saw the other day that the pancakes were both working together at one of the restaurants I placed which was pretty sweet.