Living with housemates

In the past, I lived with housemates. I lived with some for over a year, and did not even learn their names. I probably spoke to them maybe three times max over the course of the time I stayed in that house. Sometimes, some would move out and new ones would move in, and because I also have a degree of face blindness, I would sometimes not even notice they had changed until I saw the group chat get updated.

How have others experiences living with housemates been?