Astral
Smileless I thought that people had to at least live for 2 years as their prefered gender and be signed of by a psychologist to legally change gender. So yes it is a surprise to me because I hadn't seen anything saying they could do otherwise.
In that case, perhaps simply requiring official ID would solve most issues.
That is still the legal position Astral.
However it has been proposed that the simple filling of a form and a declaration should be all that is required.
In the meantime, organisations such as Mermaids, Stonewall, Scottish Trans Alliance have given 'Equality Training' to NHS, Police, Prison Services, Education authorities etc and have told them that the law says they must accept a person's chosen gender identity at all times, without any need for a GRC (which is untrue).
This has resulted in men being given beds in female hospital wards, and male prisoners being held in women's prisons.
It has also resulted in many schools converting their toilets to unisex or allowing pupils to use the toilets they want to, based on 'gender identity'.
Girl Guides now accept members and leaders who are trans (males) and many parents are completely unaware that their daughters may be sharing sleeping and washing facilities with adolescent boys, on Guide camps.