We need to find the root of why women are so ashamed of periods and embarrased about going to the loo. This conditioning is the problem.
I'm not ashamed of my periods. Quite happy to discuss them with anyone who is interested. Male or female.
However, I don't want to deal with them in front of anyone really. At least if I'm dealing with it in a women's toilet, the chances are the majority of other women have shared a similar experience. And I'm entitled to this privacy under the Equality Act 2010.
As for those saying they don't mind, of 134 voyeurism complaints in 2017-18, 120 were in unisex facilities.
As Blooper says, spy cam porn is a real thing and you could find yourself the 'star' of one of these 'films' and not even know about it.
The reason we have single sex facilities is for dignity and privacy but also to protect women from sexual assault.
As 98% of sexual assault is commited by men, I'm happy to keep us segregated.
The preference of a man to try on a dress with women who are also trying on dresses is not a greater priority that protecting women and girls from sexual predators.
Or, at least, it shouldn't be.