Showing a password vs getting your face scans taken and stored in a gigantic face recognition library is a gigantic difference. Once the state has your biometrics stored, you can be ID'ed without you noticing, e. g. as you walk around the city.
Showing your passport is functionally equivalent to getting your picture taken. It ends up as a record in their databases that says John Smith, with these biometrics, purchased a SIM with this number.