What are you talking about? Anytime you go and do anything with opening a Bank account you're asked to show you SS Card. Anytime you go and get a new driver's license you're asked for proof of residency, SS Card and another form of ID. Anytime you get a new job, what do they want? A copy of your SS card. How is this not used for an ID? Typically someone asks for ID you give them a photo ID, but your SS card is used as a form of ID.