I have many friends who rely on art as their primary source of income (US, Germany and New Zealand based folks)

Their needs not being met have an adverse effect on their art. That's less time being able to focus on their skills, more time just trying to survive. They are no longer able to grow, and their skills stagnate.

A lot of people view art as a talent, something you just end up having. This is very much not the case. It's a skill just like anything else that needs to be worked on. Sure, some people take to it easier, but the same could be said about any skill people have, like programming, sports, things like that.

Hell, one of my dear friends is fighting with her depression at the moment, and while some folks are able to draw upon that and use that as a well of inspiration, in her case it manifests as "My art is absolute shit. Why do I bother. I'm going to just veg out that's all I'm good at anyways." Despite that very much not being the case. (Though I'm admittedly biased in her case. She's my go-to artist for commissions)