We had unisex bathrooms in my university residence (which was also unisex, naturally) and it caused no problems whatsoever between the male and female students. If it worked there, it can work in many other places, I should think. A lot of these "problems" exist mainly just as a problem in someone's mind...and their mind is shaped wholly by their cultural expectations...and their family background. I've met people who insisted that a bathroom door in a private residence must be closed when you exit the washroom because it's rude to leave a washroom door open...I've met others who insist that it must be left open when you exit in order to indicate to others that the washroom is now "free". They are both "crazy" from the other's point of view. ;-)

Ebbie, I applaud your thinking on this matter!