Always the same argument, and still wrong. It depends 100% on the desirability of the expected result. I have seen a non-IT guy do an incredibly complex serie of super user operations on his PC just to install CS. He was very motivated. But if you asked him to install Chrome in place of IE he would even understand what it meant.

Same: many people still use peer-to-peer software to download movies, mostly porn. I guess it is better now but for a long time you had to do some port forwarding -- yes, port forwarding -- on your home router to get bearable download speed. Nowadays it still seem very difficult to get the proper non English subtitles for movies, but it is very attractive so people do it despite all the "steps".

So, please, let's stop this "Family memebers are below-two-clicks stupid" mantra. It is false. The truths is: they usually do not care enough for the second click. When they do care enough, typing a command line is very feasible.