Although I know that the focus of the challenge is college affordability, I believe it is important to recognize that college is not always the right answer.
As Sasha showed on her post Why Go to College?, "students are faced with high level of pressure by society and parents at the time of High School graduation". And I believe many of them don't really think if college is the right next step for them. They just do what society expect them to do; go to college.
However, people can follow other paths and still be successful. There are many entrepreneurs who drop out college or even high school. Check a list of examples here, it includes even an American president.
The idea of not going to college has been promoted by some programs and initiatives over the last years.
The billionaire, Peter Thiel, has a program called Thiel Fellowship, in which he pays students with promising ideas to drop out of college.
"The Thiel Fellows are given a no-strings-attached grant of $100,000 to skip college and focus on their work, their research, and their self-education. They are mentored by a network of visionary thinkers, investors, scientists, and entrepreneurs, who provide guidance and business connections that can’t be replicated in any classroom." (http://thielfoundation.org/project/#thiel-fellowship)
Peter Thiel thinks his program is a viable alternative to what he sees as a largely ineffective university system where costs far outweigh benefits. According to him, "Today, everybody believes that we need to go to college, and people will pay-- whatever it takes."
Another program is the UnCollege and its Gap Year Program. The core principle of UnCollege is that people should be empowered to take control of their own choices for education. Their experience-based program teaches young adults the practical skills they need to succeed today through a blended approach of self-directed learning, accountability training, mentorship, and bounded risk-taking. (http://uncollege.org/)
So, I am not saying that college is not important. The point that I would like to make with this post is that there are other options. And while they have some drawbacks (as college also has), they are still valid.