I don't understand how audio interfaces are intended to scale in groups. How would an audio interface work in a cube farm, in a grocery store, in a restaurant?

I don't understand how audio interfaces are intended to scale in groups. How would an audio interface work in a cube farm, in a grocery store, in a restaurant? Same thing with VR interfaces: if I walked into my workplace and a third of the people were wearing their VR masks, I wouldn't work there long. Even VR masks come with headphones/headphone-interfaces, though...