Theres a great guide from Microsoft on this (mentioned in the reply to this HN comment https://news.ycombinator.com/item?id=30062178)

We’ve all had to open a door with our hands full and thanked the wheelchair button by the door, or tried to watch a movie with the flu and a stuffed head so we snapped on CC.

I think of better accessibility as being better usability, and thus 'accessibility measures' as 'good ideas' per se for any infrastructure that cares about its users -- of course, the problem is that many organizations do not.

I actually randomly get reminded of this now and then, when I:

- open a door with an elbow instead of greasy or occupied hands

- tab through a UI or use alt key shortcuts to quickly perform repetitive tasks not worth automating

- take carts, bicycles, and other heavy objects up accessible ramps, kerb ramps, or mandatory lifts

- read alt tags of images that fail to load or that the file host has lost

- search in or read the captions/subtitles of media that doesn't get to the point

- read captions when I can't play audio

- machine-translate autogenerated captions from unknown languages

Not to mention all that gets taken for granted that wouldn't exist had it not been required.

Edit:

Found a submission about just this while searching for your past rants:) https://news.ycombinator.com/item?id=30062178

In the disability spectrum chart linked there, the figure with a sword and round shield illustrating the 'Heavy Accent => Speech x Situational' case is brilliant; going far backwards in time guarantees linguistic distance from any viewer.