I’ve only ever read a little bit about this but my understanding is:
Much of what you say is right, and braille signage is not a perfect and comprehensive solution to accessibility for all blind people, but
It’s still useful because public spaces are designed with a lot of regularities that make it not-that-hard to predict where signage will be, especially given that
Many blind people are unbelievably good at exploring unfamiliar spaces, relative to what a sighted person might imagine.
I’ve only ever read a little bit about this but my understanding is:
Much of what you say is right, and braille signage is not a perfect and comprehensive solution to accessibility for all blind people, but
It’s still useful because public spaces are designed with a lot of regularities that make it not-that-hard to predict where signage will be, especially given that
Many blind people are unbelievably good at exploring unfamiliar spaces, relative to what a sighted person might imagine.