I 100% agree. I've been working on a component library rebuild at work and accessibility is a key focus, granted I don't think that would be the case if some of our contracts didn't mandate it but it's fiiiiiine

I'm someone who enjoys this kind of work, especially when the target is a stylized drop down - I got to spend a week with the MDN page for the ARIA combobox open, trudging through all of the ins and outs of keyboard accessibility and I know I'm still missing a couple things (typing when the control is focused but not open, for example), and having clearly defined specs is something we don't seem to get a lot in webdev