 In those states, most people are going to have a driver's license or some form of ID. If you have a real ID, that's going to prove that you've got citizenship. Maybe you've got a passport or you've got a passport card. But let's say you don't have any of that. Some people don't have those things. Or some people maybe live in the states where the driver's license doesn't show that you're actually a citizen. Okay, fine. I looked up the cost of a birth certificate. A birth certificate here in my great state of Tennessee is $15.00.