Re: +1
" Disclaimer - the last Windows desktop in the house was wiped in 1997 and I presently have 5 (a personal per head + 1 shared) Linux desktops, 4 Linux laptops, 3 Linux STBs and 2 RPi based controllers. All of that is running Debian. Based on running that Linux is fit for purpose to be a desktop for Joe Average User 99% of the time."
Oh you're my hero! Can you tell us the colour of your walls while you're at it. Totally irrelavant to the whole argurment.
Actually you've highlighted the problem yourself. There are a myriad of Linux distros and on top of this a myriad of desktops. Imagine the following scenario, Bob is talking to Fred in the pub who is having an issue and he doesn't understand how to change his screen resolution for the new monitor he's purchased. Bob says don't worry mate I'll pop over and show you how. The trouble is Bob is running Ubuntu and Fred is running Mint. (Try not to be a pedant and point out that Mint runs on Ubuntu.)
Bob only knows how to do it in Ubuntu and doesn't have a clue how to do it in Mint. This doesn't deter him and he manages to royally cock things up! Yes it's a very simplistic view but it gets the point across as to why businesses and people like to stick with Windows for the main part. People know it.