Earlier quoted context omitted.
We do have personal numbers used for identification purposees, in my country we have the OIB https://en.wikipedia.org/wiki/Personal_identification_number... which superseded the JMBG https://en.wikipedia.org/wiki/Unique_Master_Citizen_Number
Countries don’t really want unique IDs per person, even though it would extremely simplify all administrative work, because: - How can spies have false identities, if you can account for every individual? - The only scalable way to get voters is not to make people switch to the opposite party, but to flood a country with people who will vote for you.
Also, a lot of countries do have IDs...