The trick here is, when you have to go out in public and there’s a chance you will need to use a rest room, if you’re a man, do not wear a dress. It’s not really very complicated.
Women don’t always wear dresses.
And let’s be honest here, there are women who don’t look very feminine ... it would be a gray area if you had to make a snap judgment.
You cannot tell sometimes by outward appearances if a person is a male or female. And who is going to check?
I see this whole issue as a minefield.
What is under attack is common decency and decorum in society, and that has been going on a long time.