Birth tourism
Some countries do not allow their citizens to renounce their citizenship or only if the citizenship was acquired by birth there to non-citizen parents. In Argentina, Brazil, Ecuador, Peru, and Uruguay, voting is compulsory for citizens. In Bolivia, Brazil, Chile, Colombia, Cuba, Guatemala, Paraguay, and Venezuela, military service is mandatory.
Donkey vote
Donkey votes have been observed in democracies other than Australia, even those without compulsory preferential voting, although the presence of these two factors in Australia makes the phenomenon more visible.