I think the voting age at 18 is just fine. While we can talk maturity of individuals, or even age groups. The age used to be 21 until the 24th amendment, which states: The rights of citizens who are eighteen years or older, to vote shall not be denied or abridged by the United States or by any state on account of age.
If we step back a bit into history, this comes from the fact that the voting age was generally 21 and the draft age was 18. Young men were being sent overseas to die in foreign wars without having a say in who thier leaders were. Now this makes sense to me.
But this notion about having to pass a test is utter BS, and someone else mentioned that voting is not a right but a priveledge, which is totally untrue. Unless you are a convicted felon and over the age of 18, it is you RIGHT to register to vote, it is also your right not to vote. If you dont vote, you shouldnt ***** about how things turn out.
Now back to the idea of passing a test, why not bring back the poll tax? Passing any type of test to vote is totally unAmerican and I think was addressed in the civil rights act.