It’s similar for stuff like state drivers’ licenses.
The thing is, a federal domestic ID is all but prohibited. We have to have passports for international travel, but too many people are against federal ID because of “muh privacy”, even though it means we just end up misusing SSNs and companies like this one compensate by collecting multiple data points on each person.
That’s basically how it works in the US too. For example, for a form I-9, Employment Eligibility Verification, you need a passport, OR both proof of identity and proof of citizenship: https://www.uscis.gov/i-9-central/form-i-9-acceptable-documents
It’s similar for stuff like state drivers’ licenses.
The thing is, a federal domestic ID is all but prohibited. We have to have passports for international travel, but too many people are against federal ID because of “muh privacy”, even though it means we just end up misusing SSNs and companies like this one compensate by collecting multiple data points on each person.