I suspect you'd have to never cross a border/barrier where ID was required, and you would need to pay cash (or bitcoin) in-person for everything, as you would b

I suspect you'd have to never cross a border/barrier where ID was required, and you would need to pay cash (or bitcoin) in-person for everything, as you would be cut-off from the banking system. You'd probably also be limited to earning cash in work that didn't require your nonexistent legal identity.