Yes, besides the mundane day to day details, which are actually up the alley of many people, the other thing that prevents people from being a small business owner is the amount of money they need to invest in it, and the fact that they are effectively assuming all of the risk; whether it be competition, changes to supply, changes to demand, etc. Insurance can blunt a few types of rare risk, but not the fundamental business risks.

So you have to be willing to take those risks, and want to be handling those mundane day to day details.