People should really consider if the mental models they have in their heads about different operating systems are actually based on reality.

These people's reality is: they are familiar with Windows, and anything else is scary and perceived as even more difficult to learn to use. 20 years ago a colleague asked me about changing to Linux, I told him he could do all the same things he was doing, just use Open Office instead of MS Word and Excel, GIMP instead of Photoshop - he didn't even dive as deep as the differences between GIMP and Photoshop usage, his response was: "You mean I'll have to learn all new icons and names for my software?" "Well, yeah, that's part of moving." "In that case I don't think Linux is for me." "I have to agree with you there."