These are related points, but not on topic -
Your playable sims don't get marked as unemployed when you sell a business to a townie and it goes back into the real estate pool. They still show as employed and the carpool shows up even though the business that doesn't exist any more. I suppose technically it belongs to that townie you sold it to. I had them call and quit so I don't know if they get paid while the business is defunct or if they show up on the lot if another Sim buys it. Anyone found out?
How much do your sims get paid? I don't think it's the large amounts that you see from the business. I suspect they get their hourly rate for the whole day but I didn't actually look closely enough.
I wonder if their pay ever changes? Do they get their rises? When they get some skills, quit and then get employed again, does their wage go up? It does from the business end.
One of the things I like about this EP - elders can finally make some money without painting all day!