Arrghh! I have a strict policy to never argue with people on FB. (I just post things espousing my own beliefs.) Hard sometimes, since some relatives and old classmates think very differently than I do. Like this post I just ran across from someone I went to high school with. Um, to answer your question, because she can't. Because as long as the majority of employers continue to pay people less than a livable wage because they're allowed to, she won't be able to find a different, higher paying job with benefits, as those are usually already taken. Or she may not have the skills. Which is fine. "Unskilled" labor provides just as much benefit to society as any other type. We as a whole need to insist that people are paid adequately for their hard work. Feels good to get that out.