Compulsory voting — the legal requirement that eligible citizens cast a ballot, typically with a small fine for unjustified non-voting — exists in Australia, Belgium, Brazil, and roughly two dozen other democracies. Australia's system, often cited as a model, produces turnout above 90% with broad public acceptance and a small administrative fine for skippers.
Advocates argue that universal participation strengthens democratic legitimacy, forces parties to appeal to median voters rather than mobilizing narrow bases, and reduces the influence of intense-minority politics that comes with low turnout. They emphasize that "compulsory voting" usually means compulsory ballot-casting — voters can still spoil or leave blank.
Critics argue that voting should be a right, not a duty; that the state should not punish citizens for political non-participation; and that forced participation by disengaged voters degrades the quality of the electorate's signal. Many also note that the U.S. constitutional and cultural tradition is incompatible with civic compulsion.