Choice it the problem. That's why Apple and Windows win. There is no choice. The lack of choice makes things easy.
Sound mad? What choice is there with windows? Home/Premium/Pro? Only 3 things to think about.
Apple? OS X. Only one thing to thing about.
Linux? Oh dear got, where doe it being? How many respins of Ubuntu are there? 16? And that's ONE DISTRO! No wonder peeps are confused!
Choice is good, but too much choice is confusing for newbs and makes them say "Sod it, I'll go Apple as that's just easier" (or whatever).