Meh. The idea that "people should be able to earn a living wage" is fine but does not always imply that it should be illegal to work for less, and structuring the economy such that this is the case can have ill effects too: it can eliminate entry-level positions and worsen unemployment, which seriously damages one's ability to improve his career later. It also impacts youths and retirees, neither of whom are working as their primary means of support, and community organizations/nonprofits who might benefit from time to time from a little more manpower than a pure volunteer solution might be able to provide.
Economic growth, and the employment opportunities it affords, are a far better way to improve economic opportunities than legislation is.