With electronic voting, I can't be sure my vote got counted, and even less sure others weren't tampered with.
And now do both things _publicly_! For money (or others things you own) you will need a Torrens-like title system with a replicated database among your fellow-citizens. For voting - it will be a database replicated on DVDs (or something that can be read, say, by a microscope:)
You may be astonished how secure that will be.
Have they told you about it?
Obviously you use your device, and you can lock it with a password. You can use two factor authentication.
It's straightforward, really. You sound like identity has never been solved electronically.
If anything, holding a physical paper id document is far less secure than a personal device with your private keys in the Secure Enclave.
Imagine bitcoin but with votes instead of transactions. Boom.
The bad part about that is that if I can validate my vote after the fact, someone else can also demand to see what I voted for, and that opens the door for vote buying, intimidation etc.
As for rubber hose crypanalysis, that is possible now.
Buying votes is already done.