Plus... Where? Accessibility varies wildly depending on what part of the world you're in.
I'm mobility impaired, so I do notice these things. Wheelchair ramps (which are easier for me than stairs) in the UAE, for example, are so steep as to be impossible for a wheelchair user to actually use. And some buildings will label themselves as disabled accessible even though there are 1-5 steps to get into the building. Because, really, those 1-5 steps don't matter. /sarcasm And yes, bathrooms that are accessible only via stairs are a thing. And they suck. It's common to have to go up 5 or 10 stairs to enter most buildings.
In other countries, like Sri Lanka, for example, there is no recognition at all that disabilities require special provisions. Wheelchair ramps don't exist much at all, and when they do, well, you still have to get over the curb to get to the ramp. Not a whole lot of thought goes into wheelchair accessibility. One department store nearby has an elevator, but you have to get someone to unlock it to use it to go up. Going down it's simply not available, so you must use stairs. Lots of bulidings don't have elevators at all, so if you're mobility impaired, you just won't reach those offices or shops. Like the immigration office - you have to go up a tall set of stairs to reach the area where you go down a small set of stairs to reach the elevator to go up to the higher floors. There's just no thought for disabled people at all.
