Interesting? Perhaps... http://www.gallup.com/poll/111685/Update-Little-Evidence-Surge-Youth-Vote.aspx
Young people procrastinate. They aren't too likely to early vote. Whether they procrastinate so much that they skip voting altogether is yet to be seen.
Young people rarely share their true thoughts with organizations which to them represent "The Establishment". Gallop, a fixture over the last 70 years is viewed by many as antiquated and Corporate owned. Literally too big to be independent. Also, I have been polled by someone or other nearly every election, but never by Gallup.