This über-strange focus on how trans people use restrooms is really weird. I totally understand that cis-women don't want men to roam their restrooms, but really...is that even a case that can be measured statistically?
If a trans woman is using the ladies room, then I am totally convinced that she will be very focused on NOT doing anything out of the ordinary cis behaivour.
No, this absurd restroom related trans-ban thing is a political show from the beginning to the end.