Don't have to learn anything at all?
So you're saying Linux works exactly the same as Windows? The Control Panel and all the settings and all the applications are exactly the same? All the "command prompt" commands (e.g. ipconfig, sfc, chkdsk, etc.) are all exactly the same? People can switch to Linux and not have to learn anything new at all?
That sure wasn't my experience with Linux, but I'm sure you know much more than I do about this stuff...
Rick