They don’t respect the different kinds of space in your house bc they haven’t read the listing. Most likely.
I’d say the ‘who else lives here’ question is reasonable for a shared space.
And the other chit chat I think you’ll just have to grit through. Although warning guests ahead of time would be a good idea “I want your stay to be comfortable so please lmk if you have any questions or concerns but please know that I’m not very good at chit chat so I’ll mostly smile, nod and leave you to yourself. “
For the intrusive and clueless:
“Why do you ask?”
“oh my life is boring, how are you enjoying xxx?”
”whoops! This isn’t one of the shared rooms. You’re welcome to enjoy the living room. Thanks. “
”You’re so kind to ask after me but I’m not much for sharing. Did you have everything you needed in your room?”
and then everything Paul said