Most people don’t have a passport. It is expensive and a pain to get one. If you don’t ever leave the country, most see no reason to. We don’t have national IDs, but we do have state. Technically, they rolled out this new RealID crap that is probably closer to a national id, but you have to pay extra and it is still done through the state. Neither of these are required. If you drive, your drivers license is your ID. Otherwise, you can get a state id so you can get alcohol, weed, cigarettes, and other dumb shit. When you get your ID, you can register to vote right there if you qualify and I think you can get a paper card. There is no reason to go through any extra hoops once you register to vote. You are in the system as a registered voter.