In my local elections, we vote all at one time for numerous federal, state, county, and city elections, and some of those may have a dozen candidates, and some may permit multiple votes. And sometimes we have referendums on top of that.

Were we to do that, we’d need a damn library full of paper in each booth, and someone to count how many slips of paper you’re dropping into each box. Doesn’t sound like it would work well for us.