The same holds true for trade workers. A first-rate, highly skilled tradesman or tradeswoman gets that way through experience. But being highly skilled does not automatically translate to business success. The skills required for business have little to do with tool-working ability. Businesses almost never fail because the owner lacks sufficient technical ability to do the work. It's usually because of a lack of good business sense.
The keys to success in business lay in three areas: financial, marketing and people skills. You have to be a good money manager and people manager. You also have to be a promoter. If none of this sounds appealing to you, better think twice about starting your own business.