The voting age in many areas has been changed to reflect the popular opinion of the time. When it is lowered, this is normally a liberal action - intending to create more opportunity for everybody, allowing younger people to have more of a say in what the government will be, etc. - and when raised it is usually a more conservative action - younger people do not have the wisdom and experience to know what is best for them, nor do they understand politics well enough to vote properly.
Of all the countries in the world with voting rights, only 21 have an age above 18 with a few of these also restricting suffrage to males only, and 18 more have a voting age lower than 18, with several more considering a drop as well. As expected, this is a general change in the liberal direction - typical of changing attitudes in the today's world towards equality and rights - with a lowering in most cases from the original age of 21 and males only.
By lowering the voting age
Made the voting age 18!!!!
Minimum voting age is 18 in India.
There is no maximum age for voting in Australia.
The voting age in Russia is 18 years old
The voting age is 18 in all states.
Legal voting age in state of Va.
In cuba you can start voting at the age 16.
Voting age across the US is 18 everywhere
The legal voting age is 18 in Minnesota
The voting age was changed with the 27th amendment in 1971. This is a federal law so every state was changed at the same time. No state sets federal law.
27th change of voting age from 21 to 18. This happened in 1971.