Doing away with men's urinals and installing cubicles instead would be a) extremely expensive, b) lead to fewer facilities due to the space required, and c) greatly slow the operation, for men at least!
So the bigger picture here is a bit more unusual.
For a long time, buildings were planned almost exclusively by men. Men took the (on paper, quite logical) decision to allocate half the toilet space to females and half the toilet space to males. In theory this seems sensible. But in fact:
- Women go to the toilet more frequently
- Women on average spend longer in the toilet
- Women have periods which take more time to deal with
- Women after childbirth have weaker bladders and go more often
- Women can't use urinals (well, not unless they carry Shewees!)
- Women are more likely to have children with them, who will slow them down
- Women are more likely to do baby changing
What we're dealing with is the reality of the fact that women need more bathroom space per capita than men do, but we've already built the toilets and whatever now.
This is obvious if you ever go to the theater - at the interval there will be a massive queue for the ladies and a short (if any) one for the gents.
The Barbican theatre made a hash of this by relabelling the women's as "gender-neutral toilets", and the men's as, "gender-neutral with urinals". What this meant was, the women who didn't want to go into the toilets and see penises (most women) didn't use the men's, but men were green-lighted into using the women's. It made the situation
worse for women.
Without structural changes to the male/female toilet allocation, the current indirect discrimination against women won't be resolved. One solution however is to make them all gender neutral. This does still disadvantage females somewhat if there are large queues, but it is much better than the current situation.
For what it's worth, male toilets have changed significantly over the years to the point that I don't feel that urinals provide much of a space advantage. "When I were a lad", the gents toilets have a long metal trough (with those blue/yellow scent blocks you would aim for with your pee), and you could fit half a dozen men there having a slash. But these have mostly been swapped not just for urinals, but urinals with privacy dividers. At this point, you're saving very little space compared to just making a cubicle. And if everything is an individual cubicle, there's no need for them to be gender-specific. The other advantage here is that you can have CCTV covering a set of toilets if it's all individual cubicles, but you can't if you've got urinals, so the security can actually be
improved by making everything cubicles.
My personal preference on a new build is for individual rooms where the toilet and sink are in the same single occupancy room, but that's not feasible to retrofit into many older buildings.