system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do blind people know where to find Braille in public places?

You see Braille everywhere on busses and toilet doors etc. but how do blind people actually know it's there?
gpt
Those Braille signs for bathrooms aren't necessarily there assuming blind people are using them to find the location of the bathrooms but moreso to distinguish if it's the women or men's bathroom.  A blind person would most likely ask someone where the bathrooms are in a building if they had no idea where they were.  Once they know the general area the bathrooms are at, those signs are there to assure they are going in the right one.  Even if you were blind and familiar with a building's layout, you're going to have a bit of relief knowing for sure you're going into the right bathroom before you walk in.