[tempfile]

Did you read the article I linked? You keep saying this is an easy thing to do, but don't seem to acknowledge any of the problems it causes. It is not easy to identify people. It is easy to identify people with 99% accuracy. If the remaining 1% are unable to access society, that is an unacceptable risk.

Consider for instance the people who currently exist, don't have government ID, and don't have an accurate record of their birth. Such people exist. Should they just die, or something?

[jujube3]

If you don't have a birth certificate, there are other ways to get an ID card. Immigrants do the US do it all the time. Pretending this is some unsolvable problem is ridiculous. It's like saying we can't collect taxes because it's impossible to identify people. When the government needs money, suddenly it's very possible to identify everyone and send them bills. Funny how that works.