Sounds like they’re in denial.

Man I’ve seen it used in doctors offices. I think it’s picking up a lot.

Check out “Linux survival” if you’re old school, LabEx if you like experiential learning more, and less explanation. Both offer exercises, both are free, but Labex has a few restrictions for free accounts, and offers a paid tier at like 9 bucks a month. And ofc you don’t have to use the terminal irl, it’s just easier after getting used to it. Most things have a GUI program equivalent, you just have to seek it out. Most of the time.

Edit: And also, Linux Mint and a few others are often recommended to new users for being both similarish to windows and approachable with GUI.