I agree with you that it would seem unsuitable to rely solely on your phone to serve as a passport or other ID, but it seems like a useful addition for convenie

I agree with you that it would seem unsuitable to rely solely on your phone to serve as a passport or other ID, but it seems like a useful addition for convenience. You could keep your passport securely in your bag or pocket, and then use the phone to save time. It's similar to using a phone to pay for things using Apple Pay or Google Pay - you can still get your credit card out of your wallet to pay, but grabbing your phone might be more convenient.