Whenever Fidel et Co want a demonstration, the authorities contact schools, universities,factories, businesses and order them to show up. They wave flags, shout Viva Fidel, get a warm coke and sandwich. On one visit to Cuba, friends of ours were making posterss to show up and cheer. If they didnt show up, you can loose a job promotion, or your job, a chance at a post secondary career, a chance to move to a different city, etc etc etc.

Thats why everyone shows up and votes, and why they dont spoil their ballots--other friends say that in their town near Habana, the polling officials hold the ballot up to the light, to check there are no comments, and that the voter marked the ballot for the chosen communist party candidates. 

 Anyone who believes dictaroships dont order crowds to show up, especially in bolshevik regimes, is deluding themselves. Not everyone showing up is under duress, but most are. I know that shattering your delusions will shock you. But oh well. Its the truth.