With regard to very old people and technology, there's a check-in system in our Norwich hospital outpatients' department where one has to use a screen. They send through the post a letter with a barcode, which has to be scanned by the machine in order to check in to reception. I had a seat near this device, and nearly all the elderly, frail folk who tottered up had no idea what to do. The receptionist was obviously fed up with fielding these confused people and merely pointed rudely at the thing. I smiled as they pressed and pressed very hard on the screen, which had a picture of a button in the middle. They nearly pushed it over. I found myself helping about six different folk touch their date of birth, postcode etc and present their barcode under the red light. Most unfair to expect unwell people in their nineties to have any knowledge of these devices, and unpardonable of the reception staff to refuse to help or even speak to them. If the patients only had to say, "Mrs Smith. Appointment at 2pm" the woman could so easily have nodded, smiled and indicated a seat.