@TwoLoonsAndASprout in the recent House of Lords debate, Baroness Nicholson hinted at a turning point in 2008, and a specific source:
https://hansard.parliament.uk/lords/2025-05-01/debates/75F1B529-7B0E-483A-AC7F-8FF909FEFE8B/NHSSingle-SexSpacesForStaff is the debate.
BNoW said: "In fact, this goes right back to the 1990s, when all Governments were committed—both sides—to single-sex spaces for patients and nurses throughout our hospital systems. That was building absolutely brilliantly until 2008, when very surprisingly something came out from inside the NHS saying, “Oh dear, we are going to be asked to have single-sex spaces and make women nurses-only protections and we are not going to do that. What are we doing to do?” I happened to see that email. That was when this started to be diverted in 2008.
"In 2014, the health Act that offered single-sex recognition throughout the NHS was already being undermined by Annex B—which, after all, is only a comment at the end of the annual nursing statement, yet it was given dominance over an Act of Parliament. I can give the detail of that, obviously. My first request is that that particular aspect should be looked at, because an Act of Parliament should surely be dominant, not an additional and internal measure within the NHS—as I would say of any other government department that was allowed to divert and send it into a different channel."
[apologies in advance for my lousy linking skills! I need to re-learn how to do it on MN, but am struggling with multiple deadlines!]