I have made a prototype https://baturinsky.itch.io/speaking-from-experienc...
Right now there is only very primitive "text-mode The Sims", with (procedurally generated) people with skills, interests and relations, but no actual life (yet). And there are items and skills, but very primitive too - you can make some food, eat it, rest, but that's all.
But - you can talk about pretty much everything there is in this small world (i.e. skills, items, people, interests, item traits) and get more or less reasonable reaction. People will be interested to talk about things they are interested in, will give you some tips about other people, and sometimes teach you a bit of some skill they know and that is relevant to discussion. They will be tired and leave (sooner if they are not feel entertained), will be bored with a topic that you speek too much about.