Earlier quoted context omitted.
For me it is less about being concerned about my device running out of batteries. It's more about some weird incompatibility between my device and the scanner. It's one less thing to worry about when I just want to get on the plane. My paper ticket isn't going to lock before I get to the gate, or not be bright enough. I won't have to "play" with my ticket to keep it active and proper for the scanner.
> It's more about some weird incompatibility between my device and the scanner. That's not a thing. They're literally just cameras looking for a QR code. And unlocking your phone and adjusting brightness is pretty effortless, I dunno. I already do those things lots of times a day.
And yet for me one time earlier this year said QR code on my Graphene OS phone scanned fine at the TSA checkpoint but refused to scan at the gate, leading to mayhem as the crew couldn't figure out for nearly an hour why the number of people sitting on the plane wasn't equal to the number of people who they registered as boarding.