It's an odd issue for me. I'm not against it, but the number of politically aware 16yos I've met would be close to zero. That said, I don't think it really gets better by 18, so I have no good argument either way.
It just doesn't strike me as anything but an attempt to gerrymander along demographic lines and so I view it with cynicism.
The avalanche has started. It is too late for the pebbles to vote.