I've experienced that once in a simulated environment; there's a museum in Nijmegen that has an indoor setup to simulate being completely blind, you get a stick and a guide and have to navigate a living room and the like. Can recommend if you're interested in accessibility and the like!
In Switzerland, there are two restaurants called "Blinde Kuh" (blind cow), where it's completely dark and you'll get served by blind/visually impaired people. There even work visually impaired people in the kitchen (besides "regular" seing people). It's a fascinating wxperience.
