I waste no time establishing that Charlotte and Michael live across the hall from each other. It’s a sitcom cliché, of course it is, but clichés become clichés for a reason. It is super convenient for characters to live near to each other, and living together in close quarters creates so many storytelling opportunities. I couldn’t pass it up. And on the other hand, if this detail bothers you it’s going to bother you exactly once then you’ll never think about it again, whereas if I had put the characters on the opposite ends of the city and created tedious logistical errors for myself it would have bothered me every day for twenty years. So in summary, sorry not sorry.