> Because this is just describing what it’s like to have a family and a household.
Actually, not at all. A co-living arrangement of adults (or WG for Wohngemeinschaft, as we call it in Germany) is not well advised to work like a family household. A family has someone being the father, someone else being the mother and then there are children. While some WGs might stabilize into such a pattern for a while, it is certainly doomed to fail and end in drama. It's more like a team at work - which infamously isn't a family either.
actually, i disagree. being a family should be more teamwork than it often is. in other words families would work better if they work like a team. that includes the children. it's a bit of both. in teams you too have people who are weaker in some aspects. in a good team, you help those people and support them. in a family you should give everyone a chance to contribute and participate in decisions. mother and father are not predefined roles. the parents should work as a team like senior developers, they act with authority because they have more experience, and they include their children like you would include junior developers.
I was talking about the virtues described in the parent comment, not a specific German Wohngemeinschaft