Ignorance of the law is no excuse. USA alone has hundreds of thousands of pages from federal law and regulations. Just to read it for 8 hours daily it will take 7 years. And when you want to understand it, well.... Better to start now. Maybe you already did something wrong. Oh, and in case of USA every state has other laws. As you can see it is completely easy system to understand it very well. Like every good system paid voluntarily is.