Something else about universities. I don't know how common it in in the UK, but here most university residences, including toilets, are co-ed. It's been the case for a while as well, it was beginning to be the norm when I graduated in '99. That may well influence the views of the students.
Back in the mid 1980s I was at university in London and lived in Hughes Parry Hall (part of the Garden Halls) in the 1st and 3rd years.
Back then boys and girls were on separate floors of the tower (there were twelve floors of rooms) with appropriate communal toilets and showers on each floor.
The adjoining Halls (Commonwealth and Canterbury) were both single sex Halls.
A few years ago they knocked down most of the Halls (but kept the tower) and rebuilt an all-new 21st century Hall which, quite coincidentally, my DD is now staying at now that she is also studying in London.
So, I've had a chance to nose around the accommodation to see what has changed over the 35 years since I was there.
Around 75% of the rooms are now totally ensuite with a toilet and shower in each room. This is all catered accommodation.
Around 25% of rooms are in the old Hughes Parry tower (the only bit they kept) and are now self-catered (they used to be catered in the old days) with a kitchen on each floor and the floors are no longer segregated by sex. Each room has its own toilet and basin but there aren't individual showers however, the showers are all in separate cubicles and there is around one shower for every two people.
So, it's interesting that the latest Hall of Residence built in London has totally avoided the whole issue of "gender neutral" toilets by giving every student their own toilet and, most of them, their own shower as well.