Hope they do, because they would be easier to forge, and generally screw with the system. There’s probably decent money in providing that sort of service to “people who want to be free of government.”

This would only work if combined with biometrics — using one’s own device as an ID card would be too insecure.

Strictly speaking, ID cards aren’t needed at all for police use anymore. When we get a driver license, all of the data on the card (including picture) are put into a database that can be pulled up by police.

All they really need is a name, address, and DOB from you — stuff that you remember anyway.