It may be a catastrophic fire in a centralized tabulation facility that reveals the danger of aggregating ballots. Of course, then the manipulators will demand internet voting.
“Of course, then the manipulators will demand internet voting.”
If done poorly (as it likely would be) that would be very bad and make cheating worse.
But it could be designed in such a way as to make cheating very difficult, almost impossible (not truly impossible, since humans can always find a way).
We’d just need to use cryptology to do it. Combine public-private key encryption and blockchain technology and you have a recipe for a very secure voting system where votes can be tracked to make sure they are not altered and that they are counted properly, but the votes themselves remain anonymized to everyone except the voter who cast them.