Re: children in opposite sex toilets
Safeguarding laws should come into play here like the 1989 Children Act. Also the DfE and law use the phrase ‘prudent parenting’. In "prudent parenting" it means making decisions that are reasonable, responsible, and in the best interests of the child, considering their circumstances and well-being. It is reasonable that you take a male child into the women’s toilets with you as its mother and vice versa. Once the child is older it is reasonable and responsible that they go to the toilet of their sex.
I would argue it isn’t responsible to suggest toilets ought to be mixed sex or we have third spaces because of the above scenario, precisely because that means an adult man taking a young girl to the toilets ends up in a private toilet room. Why should an adult and child of opposite sex have more privacy than an adult and child of the same sex? It doesn’t make sense for keeping a child safe. I have come across this argument before and it’s nonsensical.
For safe toilets, you need single sex toilets with door gaps at least from floor to door.
(This is an exact post from the thread that went so sorry if you did see it before).