There are. There isn’t any difference. It’s like people being afraid of facial recognition for border checks. It’s creepy at first, but governments already have pictures of everyone’s faces from their ID’s. They don’t gain anything from the additional photo except efficiency to speed up a process that’s already in place.

Edit: I will say that I would never want a government app directly linking my ID to my phone unless I could be absolutely sure it wasn’t doing anything creepy in the background. I wish sandboxing apps was a default feature for all smartphones.