Think it's silly how much time we're spending talking about bathrooms? Fine. Let's talk about something else. Let's talk about actual living quarters, because that's where we're heading next. Let's talk about college dorm rooms.
Parents, you're dropping off your 18-year-old daughter for her first year of college. You take her up to her dorm room and you meet her roommate. Something sure doesn't seem quite right here. The roommate introduces, er, itself as Brittany, but explains that its birth name is Brian. It's fine, you see. It's trans! And it identifies as female.