A national digital replaces a drawer of paper documents with one record.
For the user, the gain is the removal of repeated proof.
Opening an account, renting a flat or claiming a benefit stops requiring three visits.
For the state, the gain is fewer duplicate records and less .
The risks are equally concrete and are mostly about design rather than principle.
A single used everywhere lets separate be joined.
Health records, tax records and travel records then describe a person in a way none did alone.
Systems that issue a different number to each service avoid most of that risk.
is the second failure and the one that reaches people first.
If a benefit requires the , anyone who cannot register loses the benefit.
Older people, people without a fixed address and people whose fingerprints scan poorly all appear in that group.
A working system therefore keeps a route open and staffs it properly.
The countries that skipped that step created a new class of invisible citizen.