The rules are not draconian jj1968 and they worked perfectly well - the ONLY people who should use the FEMALE toilets are those of the FEMALE sex.
You keep on an on about gender stereotypes and yet the people clinging to and enforcing gender stereotypes are trans people.
Women were never asked if they were comfortable with male bodied people, however they present, using their sex segregated toilets or changing rooms. How progressive and inclusive assuming consent is, women weren't asked or considered in this Brave New World because the powers that be were well aware the answer would be NO, find another solution and they were too dismissive of women as a class to do so.
There have been problems, there are problems, you just don't want to accept or hear them.
The minute a survey asks whether women wish to share any of the above facilities with males who still possess their male genitalia the answer is a resounding NO.
None of the women you know may give a shit, which I actually doubt, but every women, man and trans person I know very much gives a shit.