unisex bathrroms

I already have done the cover page.  The paper needs to have three states authoritative sources references in paper.  Double spaced.  The question I am digging at is it okay for a man/woman to use the bathroom that they most identify with even if they are not of that sex. I come down on the side that unless its a handicapped or family bathroom then no. To offer solunion, when new buildings are being erected they should put in more of those, thereby erasing the problem.