Just remember that unisex bathrooms is the ideal perfect target, but reaching that target is way out in the future. In new construction it is a smaller added cost to the final total cost. However, to retrofit all existing buildings will take many, many years and a lot of money that could be used for other purposes, like maintenance and other needed "green" upgrades. As an example, those neat little sloping handicap/disabled ramps that transition from the sidewalk to the street level are still a work in progress after so many years being mandated by law. Here in California, AKA "Earthquake Country", seismic retrofitting is still many years away from being completed just on public buildings, let alone on private ones. So, the bathroom issue for us needs to be resolved in another manner for today, not 50 years down the road when our favorite bar or restaurant finally gets around to changing their bathroom configuration.