I have been using public restrooms in this exceptionally gender-diverse city for the past 40-something years, and also reading the local and national papers, plus I know a lot of schoolteachers and parents of schoolchildren, and in all that time I have never actually heard of, or read of, let alone seen, an incident in which a trans woman or girl somehow caused unpleasantness in a women’s room, and it does not appear to be something anyone worries about here.
You haven't been paying attention then, have you, Rebecca? Here is one example for you. There are many others.
Transgender Woman Is Charged With Voyeurism at Target in Idaho
In the Year of Our Lady 2020 there’s still a fuss in the UK about the bathroom business.
Perhaps that's because of incidents like this:
Transgender woman, 18, sexually assaulted girl, 10, in Morrisons' female toilets
When there is so much real violence against women, it’s a sad waste of time to focus on imaginary maybe presumably it-could-theoretically-happen violence. Trans women pose no threat to cis-women, but we pose a threat to them if we make them outcasts and pariahs (and insisting they use men’s bathrooms endangered them horribly).
In addition to the fact that not all transwomen are harmless, there are also men who pretend to be trans, like this one.
Sexual predator jailed after claiming to be ‘transgender’ to assault women in shelter
Why don't you try acquainting yourself with some facts before writing your next article, Rebecca?