A new Trellis Strategies survey (PDF File) of 3,182 former students who left college without a credential finds that financial pressure and life circumstances (not academic struggles) are the top reasons they walked away.
This matters because students who leave college without a credential are usually the ones that face the most financial difficulty after leaving school. When you drop out of college, you still owe any you student loan debt you've already taken and may face repayment of other aid.