The site of the ‘Sex Matters’ organisation is well-worth a visit for anyone seeking guidance re the law and issues such as ‘single sex spaces’, the school curriculum, updates and developments, and so on:
https://sex-matters.org/about-us/
***The organisation ‘Sex Matters’ – people who believe that “Sex matters in law and in life and it shouldn’t take courage to say so.” Wide range of advisory resources available via this site.