Or if your battery runs out. Or if it has a bug. Or if it runs a non approved OS. Or if it's too old. Or if it's being running an update.

I’m annoyed that I had to scroll this far to find “battery runs out” as an issue. I travel frequently and have had this happen a number of times.

Paper passports shouldn’t go away. The USA should, though, stop issuing 50 page passports by default. Way too many pages for how less frequent passport stamps have become for the average traveler.

How is this any different a concern than losing your physical passport while traveling?

Much harder to smash a piece of paper/plastic and it's kept protected whem not needed, while phone is constantly in use. Also paper can't brake down randomly.