Why Debate a Teenager?

[Goosebump]

But honestly? If we're going on this basis, why don't we put other restrictions on voting? Why do people with an IQ below 80 get to vote (for example)?

Quite simply, because most of us live umder nominally democratic systems we value government by the collective consent of the governed.  Disenfranchising the.governed is anathema to that end.

I for one would not want to live under a system where officials had this sort of power.

Even stupid, ignorant people are entitle to have a voice.

I agree with everything you said, however there is science behind brain development. Would raising the age be unrealistic or undemocratic? 

This is an OLD poll but it shows that as first time voters, 71% young people in 2005 voted their parent's party.

http://www.gallup.com/poll/14515/teens-s...tives.aspx

I'm having trouble simply googling some more recent results.