xfrank wrote: About games, I can push my sons to install Steam on Linux and let's see what happens, but there is still the problem of some Windows-only games. Maybe they could get accustomed to switch between MS and Linux in a dual boot arrangement.
I've setup a dual boot for my kid for the exact same reasons, for Windows Games only there is no other choice for him to boot into Windows otherwise he logs into Linux. Over the time they will realize the difference by themselves, last night I was booting a Windows 10 laptop right next to my desktop and suddenly my child started a conversation saying:
"Hey dad look the login screen is ready in your PC you can start using it, Windows is so slow starting up." That! was hilarious I was
So I've asked, But slow? How? and he said "It is slow on everything, everything that you try open takes a lot of time."
He's only using my desktop with dual-boot, the exact same PC (8GB RAM, 7200RPM disk, Nv GTX750), matter of fact Linux is installed in the slowest SATA-II disk and Windows is running from a SATA-III disk. On both Windows and Linux he has a limited user account so he cannot change any system settings, so is not that he trashed Windows or anything like that.
If a 9 year old kid can superficially notice the difference between Windows vs Linux anyone should be able to, just let them experience Linux at their own peace.