And, generally, they do buy those things for themselves. Though plenty of employers will allow employees to expense these sorts of things, along with tools like ergonomic keyboards. They're cheap, in comparison to the cost of employees.
Hell, maybe that's the example I should have led with. Some non-disabling health conditions might put someone at a heightened risk for carpal tunnel syndrome. Ergonomic tools seems like a no brainer, compared to hardship and learning to work harder.
I said no such thing. Just making the observation that if people fail to change adequately to keep their job, there is probably an underlying reason.
I spoke of a need for cultural change in details like how we feed ourselves. You making this about an expectation that it is entirely on employers to cater to the needs of whiny, incompetent losers or something is just that: You framing it that way. I did not frame it that way.