"The ID card itself isn't the real problem: it's the ID register. There, each entry will eventually take on a legal status. In time, all other proofs of identity will refer back to the one entry. If the register is wrong — and remember fallible human hands will at some stage have to handle your personal information — then all other databases will be wrong too. Given the propensity of officialdom to trust the details on their computer screen, rather than the person in front of them, you will have to conform to your entry in the register — or become a non-person.
"In effect, your identity won't reside in the living flesh and blood of you, but in the database. You will be separated from your identity; you will no longer own it. All your property and money will de facto belong to the database entry. You only have access to your property with the permission of the database. Paradoxically, you only agreed to register to protect yourself from 'identity theft', and instead you find yourself victim of the ultimate identity theft — the total loss of control over your identity." —Prof. Ian Angell