I was grateful being unlicensed I could still do all my plumbing and electrical on my cabin and pole barn with permits and inspections of course. In the city I used to live in you could not I believe. Did remodel on my old house anyway (without permits) cause at the time I couldn't afford to hire a licensed pro. I don't recommend my ways unless your somewhat handy and have common sense, able to read and understand nec and plumbing code. Not talking about watching a YouTube video either.