Maybe they need to work at making the ordinary loos at least reasonably accessible, even if they don't have all the facilities/size that a disabled one would have.
I try to avoid disabled loos even though there have been times that I have had real problems getting to a toilet in time (with IBS), because of such negative reaactions I've had from people when coming out when I have no visible disabilities.
At the moment, it's not a problem (it comes and goes). But, I was still told to use the disabled loos in the coffee shop, and it's happened on a few occasions. The loos in places like Starbucks are often up or down really tight, narrow staircases. I've had luggage with me, and simply would not have been able to get it up or down the stairs, nor in the cubicles. I asked if I could leave it somewhere, or asked if someone else would keep an eye on it for me, and have always been told 'no' - no unattended luggage allowed, full stop. I was told that I had to use the disabled loo and take my luggage with me, if I wanted to use the loo at all.
I didn't need the extra space or facilities of the disabled loo, and I certainly didn't mind queueing; I'm even happy to have dragged the luggage along with me and up and down a sensible number of stairs; all I needed was a loo without tons of very narrow stairs, and of a size that I could have opened the door with luggage - it was one of those double doors, where there was just no way that I'd have fit.
But the staff didn't seem to think there was anything wrong with telling me to use the disabled loo, and I don't know what I could have said to convince them that unattended luggage would have been better.