I know one person at work with CIs and yea, I imagine it's a challenge.

UX for a lot of assistive technology is iffy at best. Repeating some of the comments others have made, I'd love it if Apple would make a full on hearing aid that "just worked". Or someone would do a good AI integration that could notify you of things you probably should focus on - like someone trying to get your attention, or emergency vehicle sirens, etc.

Marketing too. But it's nice to see some vendors starting to actually make their devices visible and fun. HAs are a bit like glasses ages ago, when it was kind of this shame thing to get teased about when you were 8 years old. Selling them as "discrete" and with colors designed to match your skin or your hair is just continuing that perception of them being something you should hide.