Also, I'm not too worried about the airport usecase as we're already being tracked and surveilled and inspected there as much as possible.
But it's another step to normalize and mandate phone and app use. The puzzle pieces are falling in place. Soon, AI could screen-capture your phone screen to detect suspicious activity, and track every tap you do, also taking pictures with the front-facing camera without you knowing, listening on the mic, etc. etc., connecting it all to your real identity. Because why not? If it's done step by step, nobody will care at all. Maybe that sounds pessimistic, but it looks like the end game and I see no principled political stance against it, nor any insurmountable technical hurdles.
Ex - we already have plenty of cases where the government outsources payment processing to 3rd parties. What happens when that private 3rd party declares it's not accepting payments through anything except a mobile app?
That's an insinuation with some vague truth to it, but not much. Budget airlines are not government departments, and competition between them isn't phony.
"The sky is blue" "I feel that it is increasingly yellow"
This isn't a serious argument.
The former happening would make so many things easier.