As I have seen, some of the dorms at the University of Pittsburgh are co-ed. From this, I have one serious question. Is it possible for a girl and a guy to dorm with each other in the same room? Well since they are 18, I guess it would be more formal to call them a man and a woman.
No, I don’t think they do that. You could look for off campus housing.
No. And if you have a University-owned apartment/suite (ex. Ruskin or Bouquet or Panther Hall) all the members of the apartment/suite must be either all male or all female.
https://www.pc.pitt.edu/housing/options.php
Starting in 2016/17 gender neutral housing is now available, contact Panther Central