Uninformed people think anarchy would be pure chaos. They imagine people running around with torches and pitchforks, that's just what your government wants you to think it is. But anarchism is the most peaceful way for a society to operate.
Plato understood that you cannot legislate good behavior! The actual translation of the quote is "Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws." - Plato B.