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.
Compulsory voting
Another argument against compulsory voting, prevalent among legal scholars in the United States, is that it is essentially a compelled speech act, which violates freedom of speech because the freedom to speak necessarily includes the freedom "not" to speak.