But there is the little loophole - a little plus side to relying solely on Social Security. I personally hope to never have to rely on this loophole!
Social Security and Unpaid Student Loans: What the Feds Won't Tell You
http://www.forbes.com/sites/jasondelisle/2014/09/11/social-security-and-unpaid-student-loans-what-the-feds-wont-tell-you/