In the history of the world? Yeah. Anytime you have a communal living space, you're going have to set norms on what constitutes shared community stuff. Is the milk in the fridge George's and no one is allowed to touch it, or do we, as a household, want milk communism and it just goes as shared groceries and we go often enough that there's always milk? There's not a right answer, but it's up to the community to decide what's normal in its culture. People come from different backgrounds, were born in different countries and have totally different expectations as to what constitutes "don't be an asshole". Do you put your elbows on the table? Is slurping your soup a sign of respect or disrespect? What you don't see is people who see a lack of a code of conduct and then just don't join.

Don't these tend to be discussions between the people involved?

Whether or not anything needs to be written down afterwards seems like it would be a separate thing.