To add a comparison to your point, in the last election in Sweden, 85.8% of the voting-age population voted.

A few key differences:

* Everyone is already registered to vote (through IRS equivalent records)

* It's always on a Sunday

* Everyone gets a letter home in advance telling them where to go to vote (60% usually do this), or how to mail-in vote.

* Identification is handled either through ID/drivers license, OR someone with a valid ID vouching for your identity.

* There are 8+ parties to vote from, and you get parliament representation if your newly created party gets 4% of votes.