[jtbayly]

The existence of IDs indicates that people are not intended to be untrackable, whether on or offline.

This is a fair trade off, because…

By your logic, there can be no argument against universal web tracking, let alone universal purchase tracking, etc.

[jeffbee]

No, that's ridiculous. The number plate on a car is explicitly designed to be read from a great distance, to achieve public policy goals that offset the large and many social costs of cars. The function of the license plate is to identify the vehicle under real traffic conditions at a distance of at least 100 feet, day or night. Whatever identifying documents you may choose to carry do not have that same function.

[rationalist]

Identifying ≠ tracking