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.
Voting age
In the late 20th and early 21st centuries voting ages were lowered to 16 in India, Switzerland, Austria, and Morocco. Japan lowered its voting age from 20 to 18 in June 2016. a dispute continued in the Maldives.