How can airlines like Ryanair expect older passengers to go digital-only with boarding passes?

I've just helped my in-laws check in for their trip to Pisa, shown them how to use the app, and paid a premium so they could check in early. They were worried they'd be unable to check in for the return flight while away.

Who's signing off these mandatory paperless experiences? Digital by default is fine; digital only isn't. If a good chunk of your customers can't use it without help, that's a design failure, not a customer failure.

It's something I'll be keeping in mind in my new role at Warner Hotels.