Either people are too old to learn all those features/controls/functions, or too young to understand and keep up.
Nothing to do with "too old". My grandfather who died at age 98, never had a TV, he just had no interest in the programs. Hated the programs frankly, (he reckoned they were trash - he had a point

), and if he wanted to communicate with a friend, he picked up the phone or wrote a letter or (horror of horrors) got on his bike and went to see them - a novel approach these days of "Fortress Bedroom". He loathed the concepts behind video games, thought journalists should be euthanized at birth, and had not the slightest interest in "smart ar&*&d" politicians, or load mouth idiots who had infested chat boards.
So, with that as a background, the chances of a Salesman selling him a £1000 PC so he could use email didnt fill him full of the joys of Spring, and the guy would lucky to leave without the door flattening his nose or breaking the tactically placed foot in the doorway.
His mainstream job before retiring? He was the senior technician repairing and building RAF Mosquitoe Fighter-Bombers. Not exactly low tech ..... he just didnt see the point, it did nothing for him. Difficult to argue against that .....
Regards
Zy