Compulsory voting
, 22 countries were recorded as having compulsory voting. Of these, only 10 countries (additionally one Swiss canton and one Indian state) enforce it. Of the 30 member states of the Organisation for Economic Co-operation and Development, 10 had forms of compulsory voting.
Voter suppression
In Australia, it is mandatory for citizens to enroll to vote and it is their responsibility to update their enrollment when they change their address. Even so, it is estimated that about 6% of eligible Australian voters are not enrolled, or are enrolled incorrectly. These are disproportionately younger voters, many of whom might neglect to enroll when they attain voting age.