Braille is literacy.
Many people think it can be substituted by speech synthesis, by audiobooks, by other things. It can't.
Voice is serial, it unfolds in time. It requires working memory. Braille is static. It unfolds in space, remains stable in time. It backs working memory, does not consume it. For things that require pinning down relationships (mathematics, music, programming) braile has clear advantages.
This is not to say people can't manage without it. I don't always use a braille display. But it makes things better: learning, accuracy, performance, speed.
Witholding braille from blind people is withholding literacy, it's denying capacity.
Don't fucking do that.