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.
Election
The question of who may vote is a central issue in elections. The electorate does not generally include the entire population; for example, many countries prohibit those who are under the age of majority from voting, all jurisdictions require a minimum age for voting.