Maya Forstater

Nope. Unless you want to leave the jurisdiction of the European Court of Human Rights, the civil status of sex must be changeable, though self-ID is not a requirement. https://echr.coe.int/Documents/FS_Gender_identity_ENG.pdf …

I do agree the guidance should be made clearer and easier to find. I found the guidance that says M&S etc were right abut trans inclusion in cubicled changing rooms, but when the misguided protests happened nobody found it. https://www.equalityhumanrights.com/sites/default/files/servicescode_0.pdf … p 198

I would hope that the guidance issued is restrictive, and clearly says that a "single sex" service is trans inclusive unless there is explicit notice posted that it is trans exclusive, which is acceptable in very limited circumstances.

Given that being trans (i.e. having the protected characteristic of gender reassignment) is v. wide criteria, this in practice means the service is mixed sex. So then it should be labelled mixed sex (which with floor-to-ceiling cubicles, as you say, is fine)

The point is there should be clear expectations for all - women should be able to be told clearly if a changing room, toilet, dorm, showers whatever is single sex or mixed.

You seem to be arguing from a user right to expect segregation, but UK law does not have such a right. The closest I can think of is a Canadian case, which establishes a right to privacy from "other sex" when nude only.

However, when there is actual shared nudity (not the case in toilets), the "indistinguishable for all practical purposes" guidance can be applied, which in that specific case means genital configuration as visible. It was probably written *for* that specific case.

No. If a woman is vulnerable in a space which she has been told is female only and hears a man's voice, she does not have to wait to *see* his genitals to distinguish and to panic. People should be told clearly if spaces are single sex or mixed sex.