Original sentence: All modern democracies require voters to meet age qualifications to vote.Worldwide voting ages are not consistent, fluctuating between countries and even within countries, usually between 15 (currently only in Iran) and 21.{{main|voting age]]
Edited sentence: A similar argument supported the passage of the 26th Amendment to the United States Constitution in 1971, which lowered the voting age from 21 to 18.Despite the best of universal suffrage, all modern democracies require voters to meet age qualifications to vote and deny the right to vote to individuals below the voting age.In all democratic countries, young people are excluded from voting in local and national elections, though the voting age is set generally at 18.Often overlooked, young people under the voting age make up 20-50% of the population in some countries, and have no political representation.One analogy is this: the 'right' to drive a motor vehicle is taken for granted, but few advocate that people of any age should be free to drive motor vehicles on public roads without first demonstrating practical skills and theoretical knowledge.The argument stated that 18-year-olds were subject to the military (Vietnam-era) draft and that if one was expected to possibly die for one's country then one should certainly be permitted to help choose its leader.The option of qualifying by 'rite of passage' tests to certify a person's competence to vote responsibly is yet to be widely debated.There have been proposals to lower the national voting age to 16 in the United Kingdom, one of the arguments for which being that, as people of 16 can marry, smoke, join the Army and pay taxes, for example, they should be allowed a say in the country's running.Worldwide voting ages are not consistent, fluctuating between countries and indeed within countries, usually between 15 (currently only in Iran) and 21