Comment by throwawaymaths

It's incredibly hard to teach a senior how to angle the phone correctly for face unlock to work (there's also no feedback that you've done it wrong). If you're using the power button, then you have to teach how to not hold it too long, or else, siri shows up. Or maybe you want them to use siri voice command, then you have to teach them to hold it down long enough (and there's no feedback if you're off of the spot you're supposed to swipe up from). Swipe to unlock (password or otherwise) was impossible.

I gave up and returned the phone.

I was desperately wishing some hipster had refurbished an old style rotary or physical push button phone with a Sim card, but not even that exists.