We are I think also the only one that both (1) has a significant number of eligible voters who do not have a photo ID and (2) in many states the party that controls the government and sets the rules for getting ID sets those rules to try to make it hard for people who tend to vote for the other party to get ID and make it easy for those who vote for their party to get ID.
> We do, however, need photo ID or at least a Social Security number for pretty much everything else (applying for loans, opening bank accounts, buying a house or car, starting a new job, getting married, etc).
There are a significant number of citizens who don't use credit, don't have bank accounts, don't have cars, work at off the record jobs that pay in cash or check (to cash a check all you need is someone you trust enough who has a bank account and then you can do a third party endorsement and let them cash it for you).