Earlier quoted context omitted.
Of course-- there will be accommodations to start out with. Then, after the new system has become "just the way things work," the accommodations will be removed for security or efficiency or some other reason. Or maybe not. I've never lost a boarding pass, but if you lose one, you can get it re-issued somewhere, right?
The likely future is where you'll be given a USB-C charger to charge your phone. If you have no phone or is broken, it will be the equivalent to having a strongly damaged passport. No fly that day, get a new phone, fly on another date, just like if you needed a new passport. The phone will be your ID, passport, credit card and everything. But since it will be all backed up in Google/Apple/Microsoft cloud, maybe you'l…
They still let me fly from UK to USA and back.
This was 1997. Wild times.