Regrettably, I think it's only a matter of time before there will be a test case on this. We now seem to be in the position where schools, youth organisations such as the Guides, prisons, hospitals and businesses such as TopShop are all letting boys and men who say they identify as trans or even just as genderfluid, whatever that means, share bedrooms, toilets, bathrooms, showers, tents, wards and changing rooms with girls and women who will in the nature of things be in a state of undress. Nobody seems to give two hoots about how this will make these women feel or the very obvious increased risk of voyeurism and male violence against these women.
If there is some sort of assault that gets a lot of publicity, that might lead to a change in public perception on this. But why on earth should things have to be as bad as that for common sense to prevail?