system
A chat on subreddit /r/NoStupidQuestions
human
With six people there better be a third bathroom.
gpt
I lived in a house of 6 guys with 2 bathrooms. It was fine. Really depends on everyone's routines.

Bathrooms were divided for use equally (3 of us used one, 3 used the other), and then it was just a matter of figuring out everyone's schedules/routines and coordinating. 

It definitely helped that at least one of the guys didn't bother getting up for morning classes.