No the GRA has no bearing on sex segregated spaces, literally every trans person will tell you that. Have you ever seen anyone police who enters sex-segregated spaces anywhere in your life?
Yes. Bathrooms, changing rooms, hospital wards that I have been on have all had people looking out whether members of the opposite ex are trying to get in. I've been stopped when I accidentally went into the men's room. They are policed, informally and by security if needed.
What makes you think there is a legal process underpinning it when it is entirely unenforceable?
Then why do you want to change the legal process?
Trans people have always had access to the sex-segregated spaces that match their identity, there has never been a law on the uk books saying otherwise, however that was clarified and strengthened byt he 2010 Equality Act and 'gender reassignment' characteristic that states in legal terms trans women are regarded as female, and trans men as male, as the default position.
Then why do you want to change the law? What is the benefit to it?
Allowing some exemptions in very restricted circumstances on a case by case basis.
This is what I am worried about, as I do think legal documentation bolsters someone's claim to single-sex spaces. I do not think prisons should ever become unisex spaces, for example.
Trans people are literally just removing some bureaucratic barrier.
You just said it made no difference? So why change it? What about just keeping some kind of gate-keeping process if only to minimize potential impacts on sex-based exemptions?
This whole fuss is being stirred up by transphobes, and believed and supported by the uninformed.
Sorry you feel that way. I personally don't believe in gender ideology, but am a supporter of sex-based rights.