So, I'm 78 and don't spend much away from home, where I am adequately computerised. One in the study (plus 3 not currently used), one on its last legs in the living room, one in the bedroom. That one will separate from the keyboard, but uses Windows, not tablet software. Also a smartphone, but I don't use email on it. Why would I? I'm at home where I can access it with legible print and a full size keyboard. I was in charge of ICT when I taught so I'm not incompetent.
But today, I have failed to complete the car purchase documents. I got as far as a selfie on the mobile, plus the piccie of my licence, and couldn't transfer them to the computer. Bluetooth malfunction, and USB plugs the wrong sort. Called the dealer. And then I am told by the dealer that the photos have to be taken by the device which will send them. The instructions did not say that. They just assumed I would have the right kit without being told. Why? (I'm going in tomorrow with a cleft stick)
I've noticed this elsewhere. It usually means they've lost a customer.
But I'm old, so who cares?