Fair point, but there’s also a repeated dribble from the right that mail-in voting is mostly fraudulent (I’ve seen that in this thread). A lot of states have had varying levels of mail-in balloting for years and do it very well. At some point (perhaps using block chain), we’ll move to e-voting
No; we'll stick with mail-in paper ballots, which are far far easier to audit/check after an election than anything electronic.
Electronic systems are hackable; our mail-in ballot systems are extremely difficult to hack w/o simple detection and identification of the perps.
It's how Colorado's RNC chair got snagged, falsifying his GFs mail-in ballot a few years ago.