In my experience the biggest reason people (those who admit they won't/don't vote) don't vote, is because they feel like their vote does not count. Especially after the 2000 Presidential Election, my generation has lost their trust in the political system. I can definitely understand where they are coming from. However, I believe the fact that most voters do not know how the Presidential election really works, is likely the biggest reason why they believe their vote does not count. That's okay. I am more than happy to provide a quick lesson on "how your vote counts" / "how the Presidential Elections works"/ "How votes are calculated" in a Presidential race.
First off, the Presidential race is not like your High School Homecoming race. In other words, this is not a popularity vote, the person with the most individual "tally marks"/names on a ballot do not necessarily win the race. The Presidential Race is a STATE ELECTION. This means you are voting on behalf of your state. You are voting to declare where you want your state to delegate its electoral college votes.
**UPDATE 3/15/2016 *** How to get more involved in this year's election, check out my campaign HERE