In a big modern office situation I expect you already have ambulant at the end (slightly bigger, handrails, shelf, outward opening door).
It is a difficult situation to balance needs. And I agree in part. However venues and schools have been tearing out their single sex toilets and replacing them with a hotch potch of designs. Schools in particular, are fond of completely private unisex cubicles with a toilet inside then unisex trough sinks outside the cubicles. Horrendous for girls and medically vulnerable.
Rows of universal toilets are not cost effective. Plumbing, extra ventilation, equipment for each cubicle, more time cleaning (no gaps to do a quicker mop), bigger so you can’t fit as many in. Queues will be bigger and the turnaround is slower (people can’t access the next loo while someone is washing their hands, or putting make-up on or other things in a private space). This has not stopped venues adding them at great cost.
Far better, if you are spending all that money, to have ann option of disabled toilets (with a healthier, safer design) that are single sex within the single sex area. And a mixed sex disabled toilet but one that is closely monitored.
For instance in the Barbican. Which last time I looked was planning on reducing women’s provision by nearly a third, men’s by a quarter and increasing unisex by 1200%. They were adding 2 more unisex accessible toilets.
That is not user friendly, cost effective, or practical for all users. Women will be queueing for the last few women’s toilets left or more likely compromising to use a toilet design proven to be less safe and less hygienic.
What about in the Barbican: Single sex with ambulant and disabled designs (all with door gaps for health and safety 150mm floor to door and gap over a 2000mm door).
Then mixed sexed private disabled toilets in highly visible areas (like unisex toilets opposite reception desks you often see in school design). And a changing places toilet.
Advantages: users, including frail and disabled can be seen if they have collapsed. Sex based inclusivity and for anyone suffering a medical emergency. Inclusive for medically vulnerable including millions with conditions such as diabetes, epilepsy and heart conditions. Ventilation improved. Wilful misuse including assaults within the cubicle reduced or prevented, hygiene improved as you can easily soak the floor and let it drain.
edit to include multiple unisex disabled loos. I am writing hastily as thread about to finish. It’s really good to be thinking about toilet combinations and how they affect all users. My radical idea is a unisex area with door gaps too. Same design as traditional toilet blocks but with the door gaps for health and safety, prevention of misuse etc. Be interesting to see how that went in practice!