Having worked in IT support early on in my career, I have observed that the typical user doesn't so much learn how to use a computer/OS as much as they learn to

Having worked in IT support early on in my career, I have observed that the typical user doesn't so much learn how to use a computer/OS as much as they learn to perform tasks by rote. You will get users that live in Word or Excel and know it inside and out, but for most other tasks they are stumped. This, I would suggest is the same for the "70 year old" grandmothers out there using "Linux".