What you're describing is named the "curb cut effect" [0].
> The curb cut effect is the phenomenon of disability-friendly features being used and appreciated by a larger group than the people they were designed for. For example, many hearing people use closed captioning.
> The curb cut effect is the phenomenon of disability-friendly features being used and appreciated by a larger group than the people they were designed for. For example, many hearing people use closed captioning.
[0] https://en.wikipedia.org/wiki/Curb_cut_effect