There are always stories of people installing Linux on their parents computer to provide them a more secure and stable operating system, seems interesting to share experiences.
Edit: I’m assuming that parents are okay with the changes, or do not care. Obviously do not force anyone to switch OS if they don’t want to.
In my opinion everything after Windows 7 progressively got worse. Windows 7 (with some exceptions) was about as good as Windows got.
If their computer is secure and they’re still happy with it, I’m not sure I would poke that bear. I’m glad that newer versions of Windows aren’t a consideration.