To make more restrictions demands rules so that they can elliminate more more votes. They live eat breathe voter suppression. All of them all the time. May they get what they deserve soon.
I assume that it was originally meant to be another layer of security to protect the validity of the vote. Do they abuse this layer? Of course they do. Some of the things states require for voting were good many years (decades) ago, but times have changed and they have not.
My opinion - all states should have the same rules on what’s required to vote. Then there’d be less confusion.