How does it work then how do you prove you are eligible to vote. In the UK we have to register with our local council each year each household get a letter listing those elidgible to vote and you either confirm or amend details and mail back to them. This year I was late doing this and they sent someone round to our house. Then before each election we get a card through the mail to take to the polling station. You do not need the card but it helps them find your name quickly in the register and you are handed a ballot paper.
Lots of states you don’t have to prove anything, you just walk up and vote. Here in Oregon we have voter fraud by mail and you just go down to the elections office and say you never received your ballot and vote.
Pray for America