That will be a big issue, no doubt. My wife and I have only had a smartphone (each) since last July, and that was purely so we could use the Covid app. A few phone calls apart, my wife hasn't been able to use the phone at all really, it took me an age to teach her how to try and browse the net. The chances of my wife learning and remembering how to use an app, scan a qr code, is extremely small. She doesn't do technology, it's just not her thing. That will apply to many people, of a similar age / outlook.
Yes, get out the back, you great unwashed virus spreading heathens