They just need to accept both. I can print off a digital plane ticket and keep one on my phone, if I lose one I always have the other. If I lose my physical pas

They just need to accept both. I can print off a digital plane ticket and keep one on my phone, if I lose one I always have the other. If I lose my physical passport though, I'm completely stuck. If I can have a physical and digital one though, there is at least some redundancy built in.