Compulsory voting
Countries that have compulsory voting by law but do not enforce it:Although voting in a country may be compulsory, penalties for failing to vote are not always strictly enforced. In Australia and Brazil, providing a legitimate reason for not voting (such as illness) is accepted. In Argentina, those who were ill on voting day are excused by requesting a doctor to prove their condition; those over away from their voting place are also excused by asking for a certificate at a police station near where they are. Belgian voters can vote in an embassy if they are abroad or can empower another voter to cast the vote in their name; the voter must give a "permission to vote" and carry a copy of the eID card and their own on the actual elections.
Voter suppression in the United States
The United States is the only democracy in the world that regularly bans large numbers of felons from voting after they have discharged their sentences. Many countries including Canada, Denmark, France, Germany, Israel, Japan, Kenya, Norway, Peru, Sweden, and Zimbabwe allow prisoners to vote (unless convicted of crimes against the electoral system). Some countries, notably the U.K., disenfranchise people for only as long as they are in prison (however, this has been challenged by the European Court of Human Rights).