Has roommates been added to the game?

But in cas when you create several sims and you go into the relashionship menu you can make them roommates. Though it doesn’t really work like real roommates.

Also random sims sometimes just go in your house and make themselves at home because they have no boundaries. But then If you sleep in a bed at another sim’s house they will tell you it’s inapropriate (even If said sim is your sim’s best friend). Go figure!