>The answer is that there is no need for any legal standard at all. As evinced by the fact that unisex bathrooms were the norm until the late 19th-early 20th c

>The answer is that there is no need for any legal standard at all. As evinced by the fact that unisex bathrooms were the norm until the late 19th-early 20th century, and that rest stops and other establishments operate unisex bathrooms without any issue.