There might be an issue with the view that non-programmers have of contributing to open-source. My sample size of 1 is a friend who is a professional UX design

There might be an issue with the view that non-programmers have of contributing to open-source. My sample size of 1 is a friend who is a professional UX designer. Once, I tried convincing them to help with some OS project, but the response was "that sounds like work, and I don't work for free". Which has a point, I guess. Open Source contributors have normalized pouring countless hours for free into their projects (when not paid by a commercial entity). But outside of this bubble, I guess people don't see it with the same eyes. Even though in the end, it benefits everyone. It just requires (semi?)professional knowledge to write good code, like it takes professional knowledge to write good UX, so "why would anyone do that unpaid". Maybe makes sense in the spirit of an artist who gives their art for free, but not in the mindset of a professional who charges good $$$ for an hour of work. EDIT: Typos and unfinished phrases.