This is a question that has no absolute answer. In many aspects of life an entrepreneurial spirit is useful. For our purposes, we will stick to the commercial and business areas and narrow the field of possible answers within this scope.
I believe that theoretically any person can be a successful entrepreneur. Unfortunately, this is far from true in the real world. Most people do not have the mix of drive, ambition, passion, fearlessness and creativity requisite in most successful entrepreneurs. Look at the lifestyle and career choices made by the vast majority of people. An aversion to risk, fear of failure and lack of confidence eliminate most people doing anything more than dreaming about seeking entrepreneurial opportunities.
It is very difficult for people to change. The successful entrepreneur is basically a risk taker, willing to put themselves, their ideas and egos on display in a highly competitive marketplace. They will hear the word no so often that they must become inured to that horrible little two letter word. Disappointment becomes their constant companion. Yet, they have a unique ability to keep pushing their project along, always seeing the glass is half or more full and a way will be found.
If success were easily achieved we would enjoy a whole lot more of it. I am always struck by how negative so many people are in every aspect of their lives. I have never seen a successful entrepreneur have a negative personality. It is an instant eliminator for anyone seeking to launch an entrepreneurial career.
So, we can be confident that successful entrepreneur