What's to stop a guy from lurking in a women's room now? There's no forcefield, a guy could get in there if he wanted to. I don't think the bathroom being unisex is going to change that. There are unisex bathrooms all over the place, although they were born of pragmatism. I don't know about where you guys live, but in a lot of smaller places, locally owned stores, or gas stations for example, the bathroom is unisex. We've got one or two unisex bathrooms on campus, and no one has ever been raped in them, or the other restrooms for that matter.
So I'm not understanding something here. Why should I want to go to the bathroom with other females? I prefer to defecate alone. If in a public restroom, I really don't care if the other people there are male, female, intersexed, transsexual, or Martian. As long as they leave me alone, I don't care. Could someone explain to me why the sex of others using the facilities matters? I just don't understand.
And water closet is bathroom, or toilet. There are so many names for the crapper.