How other countries vote with no electronics at all

Laura and Tara from SC Safe Elections speak with Argentina and Costa Rica voters to discuss how they vote with people, paper, and pens—no machines! And guess what? They can finish counting by 9 PM, and the process is observable by party delegates and representatives. They vote on Sunday on ONE DAY with NO mail-in ballots except for people outside the country.

This is an eye-opening interview.
So if other countries like Argentina, with 44 million people, can do this, why can’t America?