Compulsory voting
Compulsory voting is an effect of laws which require eligible citizens to register and vote in elections, and may impose penalties on those who fail to do so. , 22 countries provide for compulsory voting, and 11 democracies — about 5% of all United Nations members — enforce it.
Voting age
Luxembourg has compulsory voting from the age of 18. A proposal by the government to introduce optional voting for those aged 16 and 17 was rejected by 81% of voters in a June 2015 referendum.