I think you're vastly underestimating the technical illiteracy most people have with computers.
99% of people buy a desktop and don't even consider what the operating system is let alone think about changing it to something else. I would imagine they don't even know that a difference exists between operating systems.
99% of people buy a desktop and don't even consider what the operating system is let alone think about changing it to something else. I would imagine they don't even know that a difference exists between operating systems.