The way he describes what he has done is not only probably illegal but a really bad way to end up life. The only way you can do what he describes is to deal mostly with cash and have no fixed assets. Which means you can't buy a house. And you can't have a pension. And you can't have large investments. Which means you get to spend your golden years living of a government stipend which won't cover a decent place to live. Having nothing and being on the edge of homelessness while you are constantly looking over your shoulder for the cops to catch up to you is not much of a life, IMO.