‘The most popular improvement recommended by the survey was more single-occupancy options’.
Unfortunately they are a health and safety problem. But they do offer the privacy you need in mixed sex environments to stop discomfort and also voyeurism by actual eyes and ears (rather than virtual hidden cameras). Of course, the building has already been compromised by hidden cameras in the toilets. Private, single occupancy ones with the extra bits like ventilation grills, sink plumbing and dryers they need are very attractive. All doctors, teachers, other school staff, policemen, politicians etc who have been charged for using hidden cameras in toilets are male.
Then of course, anyone who has a medical emergency in a toilet is greatly compromised. There have been a couple of high profile cases in Edinburgh where people were found deceased hours or days after entering the toilet.
Then there’s cases where vulnerable women and children have been led into these private designs of toilet by men. That’s also happened in Scotland recently.
And of course the fact that pathogen load is greatly increased in a unisex toilet. The sinks and dryers are better away from the flush plume spread area for obvious reasons. Women’s toilets are healthier as it is scientifically proven they are more likely to wash their hands than men. Unisex toilet door handles are particularly grim.