The problem with digital voting is that it needs to be anonymous who votes for what. That makes the problem much much harder.
* it must be anonymous, ie nobody but you should know you you voted for
* it must keep integrity, ie nobody can change your vote
* it must be verifiable by all participants
Paper vote makes it easy to meet all criterions: just keep an eye on the ballot and you will be relatively sure that everything is fine. On the other hand it is impossible to have all those conditions with a digital vote, if only because digital anything isn't easily verifiable by all participants.
One criterion, three criteria.
Same goes with money, these things called crypto currencies are digital money offering various levels of anonymity.
None that don't require printing a paper ballot so the voter can check the correct thing was done. And then taking that paper ballot and putting it in a sealed box. And once you've done that the high-tech bits are irrelevant and you're back to the cheap, safe and easy to use voting system we've been using without issue for decades or even centuries.
"Electronic voting is the reverse FizzBuzz. FizzBuzz tests if you know the absolute basics about technology to implement something extremely simple. Electronic voting tests if you are able to reject the use of technology when it doesn't add any advantage and instead creates very hard to solve failure modes. Voting benefits from the use of the extremely simple ballot and box. It benefits from it not being programmable and from the counting method being something that almost all the population is able to carry out let alone understand."
I have yet to see one that involves a digital voting system. Many of these voting systems are insecure and F/OSS(free and open source) won't fix that. You are giving too many people physical access to these systems at every step of the chain. Many have proposed a "blockchain" based voting scheme, but that takes out the anonymous aspect of voting.
> Same goes with money, these things called crypto currencies are digital money offering various levels of anonymity.
Yes and none of them provides any anonymity since they all at one point or another reveals too much about a given transaction.
With paper ballots, it's really difficult/infeasible to track who voted for whom and is a bit more tamper resistant on a large scale.
edit: a word.
The "trust" of the digital money system is because we can have humans unwind any transactions we deem to be "incorrect".
Unfortunately, we can't "unwind" an electoral transaction without giving up anonymity.