Ok I hate to be devils advocate here but… say you are taking care of your sick and dying mother. She has a stack out outgoing mail you haven’t had a chance to drop off at the mailbox yet. It includes her mail in ballot. She dies. Then you take her last unsent mail to the mailbox. It would be post marked after her death. Is that a legit vote?
Also I happened to notice our mail in ballots say “no power of attorney” so presumably the person has to be able to fill out and sign it themselves.
Somehow this reminds me of those goofy medieval cat paintings.