Because we can trust people with the most life experience to pick the most qualified candidate for President?

Are you saying that everyone under 30 cannot have an informed opinion? I watch 2-3 hours of political commentary on week nights and the Sunday morning politics shows); read 3 major newspapers online everyday; looked at both candidates websites; and voted during the primary and midterm elections. I'm under 30 married, have a steady job and have a kid on the way. How much life experience do I need to be able to make an informed opinion.

So at 18 a person can make a decision to fight (and possibly die) for their country, but they are incapable of making an informed decision of who the leader of their country is?