Did setting up windows confuse you? Maybe it’s time you get taken to the home if things like that are starting to happen.
Seriously linux these days is way easier than when I tried it a decade ago, but the skill of “it’s not just double clicking an .exe or equivalent” to start new third party software took more effort than some people want to learn. The arch wiki is great and there’s no way in hell I’m going to get my in laws to use a computer that requires a wiki. Ubuntu is on par with windows and mac these days yes, but it’s similar difficulty to switching from one to the other. And for what? Less software that they care about (though more and more). More freedom to do stuff they don’t know how to do. More privacy they don’t care about. And the ability to understand senile assholes like you.