The secret ballot first came into use in the USA after the civil war. People shouldn't be ashamed of how they vote, and they should be protected from anyone who would intimidate or coerce them to vote a certain way.
The corrupt Democrats in PA are depriving voters of real ballots because they claim they'd be used in vote-selling scams, but in reality they just want to have convenience and ease in manipulations of tallies without risk of detection.
Puh-leeze. I can only imagine the intimidation possibe at many levels of society if ballots were public. Would you really want President Hillary deciding what was voter intimidation and what wasn't?