Accessibility has come a long way since I was a child. Sports associations took way too long to decide that corticosteroids and anabolic steroids are not the same thing. You had to walk through the smoking section to get to the non-smoking section that was in the same room with no dividers or anything, sometimes even in medical offices. When I went to college I chose the one that I did because it actually had an office for students with disabilities. It was at the top of a hill in an old converted house that could only be entered using stairs and the closet disabled parking was a quarter mile away but it existed. The one counselor in the office basically set up a second office in a library study room so that students could actually meet with her and unfortunately she wasn't always convinced that invisible disabilities were legitimate. She did help with making sure I didn't have back to back classes on the opposite side of campus and she passed information from my doctor to the professor in my physical education requirement so I got what I needed from her without too much arguing.
A lot of the progress is really just awareness and destigmatation. It was very important to my parents and kindergarten teacher that I did not have autism, I have Asperger's. They thought that people with autism were mostly nonverbal, never did well in school, and had no future so the testing that said I was mildly autistic disappeared and I didn't find out about it until I was diagnosed in my early twenties and my grandmother told me that "we" already knew. I still don't disclose my disabilities unless I have to but it's kinda amazing how open people can be about their health issues and need for accommodation now.