Somewhat related though very different, there are restaurants called Dans Le Noir ("in the dark") - founded in Paris but now in several countries, though so far I've only been to the one in London.

You choose one of a few set menus without knowing what's in it (IIRC, roughly "meat eater", "fish eater", "vegetarian") and give any specific allergies or really hated food types. You are then led into a pitch black room with absolutely no light leakage (no phones/etc. allowed) where you'll be served and eat your food without being able to see a single thing.

I believe the kitchen staff are hired purely on their cooking, but the waiters are visually impaired people who can lead you to your table and serve your food flawlessly without sight.

Their sales pitch is more about the uniqueness of the experience than about supporting blind people, but the fact that it does create this unique job that they're better qualified to do than people with normal vision is nice.

And it's a really great experience, although not particularly cheap.

https://london.danslenoir.com/en/home/