Many blind people, as I just found out, may not be aware that you can use Touch Typing to enter your Apple Watch Passcode (since Watch OS 10), rather than double-tapping each key individually. This surprised me. But when you are on the passcode screen, just rotate the rotor to find "typing style" and just like on iOS, you can adjust that to "touch typing." It may just not be obvious to people that on this screen is a standard keyboard so they never check it.