Yep, I feel the frustration. Being single it's an adventure when out and about. Often I'm lucky in timing and someone comes in or heads out as I do and they offer to hold the main door. The stall is frustrating to close and so dang many of the doors gravitate open while still trying to turn enough to reach and close it, assuming I can maneuvre well enough to get turned around. One of the UW Physicians' clinics is new and their public bathrooms have a sensor to open but the staff keeps it turned off. And that adds yet another level to get to someone to ask them to turn it on or assist. On that note, if I am alone (rarely) I have no qualms about asking staff to open a door.
Similarly, reception desks that have two levels. One being designed lower for wheelchair patients (at clinics) and another counter height where the receptionist can stand but rately do... rant here... with a weak voice and straining of neck I wait until the person takes the effort to look me in the eye and TRY to lean down to hear me rather than keep repetitively shout at me, "yes?" or "name?" Mostly people are helpful.
There are too many hurdles which have been addressed by designers but foiled by others. Sort of like cart corals vs. wheeling shopping carts onto sidewalks and leaving.
An friend or good samaritan is too often the only option. And I follow the rule of never passing up the opportunity to use a bathroom.
