<p>I had to run down the hall to a shared toilet and shower when I was in college. It was fine.
My son, who is a college sophomore, has a bathroom he shares with the room next door, so 4 boys, and it is actually disgusting. None of them will clean it. At least in the shared hall bath a custodian cleans it twice a week!
And when I moved into an apartment with girls none of them would clean either. </p>