Far sighted people can still drive safely, but might need glasses(or a different kind of glasses) to operate screens in a car. Where previously you could adjust things by touch and intuition, well, now you can't.

I assume parent comment was complaining on physical buttons getting removed from many home electronics and a company removed keys from a keyboard and replaced with a touchbar thingy - though from what I read they had the courage to admit the users did not like it but nobody seems to think "let's do a real world user UX test before we do major changes because some vision person thinks this touch shit looks futuristic".