While most surgical residents feel the, "I'm not ready" feeling, most of them are very well prepared to start practicing. Everyone needs help, even the best of us, but how we train residents puts out good products at the end. By the same token, when you are 11 years after graduating college, most people are a decade or closing in on a decade into their career. I'm half way through my residency and I have former classmates on Forbes lists, running for political positions, making partner in law firms, etc. The prospect of adding more time to training is hard to stomach. That is the visceral response, but as highlighted previous, you give up a tremendous amount of money every extra year of training you do. That means retiring later or making less money, something people don't want to do.