Re: The company I work for went through this
The 'hit the ground running' problem is just not a thing any more. I moved my 75 year old father and 65 year old uncle from XP to Mint Mate, with no UI tweaks beyond making everything bigger. Neither of them had any problems at all and the only difference they have noticed is that they can't install crap they find on the web - which is a bonus.
Support has dropped from an issue every couple of months to an issue every year or less.
Biting the hand that feeds IT
