[konjin]

There were a bunch of mathematicians who used roman numerals for arithmetic between 0 AD and 1200AD. That they existed is not a counter-argument to the fact roman numerals are terrible to do arithmetic in. That is an argument that people can get used to anything, and become proficient enough at it that changing to a new - and better - system will set them back enough for it to be not worth while doing - for them. The same is true for modern maths notation.

[hprotagonist]

I am not blind. Neither am I a mathematician. I'm a sighted biomedical engineer.

I have heard blind mathematician colleagues very loudly espouse using LaTeX for everything they do. I'm inclined to believe them!