Compulsory voting
Compulsory voting is increasingly resented by citizens in some countries such as Brazil, the largest country where compulsory voting is enforced: at the last presidential election in 2014, some 30 million voters, about 21% of registered voters, did not vote, despite the fact that Brazil has some of the most severe penalties enforced against non voters.
Right of foreigners to vote
As voting is compulsory in Belgium, and all electors are automatically on the electoral rolls (extracted from a computerized National Register), foreign residents have to register voluntarily on the electoral roll, and only then are they subject to the obligation to vote. At the 2006 municipal elections, only 20.9% (110,973 out of 529,878) of the potential EU voters registered (17.6%, or 87,858 out of 498,315 at the 2000 municipal elections), and 15.7% (17,065 out of 108,607) of the potential non-EU voters.