Michael Dell's qualifications were that he was born well-off. His father was an orthodontist; his mother was a successful stockbroker, and he was in the pre-med program at one of the five best land-grant institutions in the country. He was risking little to nothing in starting his business. He always had a safe place to land and already had a future planned if his side hustle didn't work.
Most of those people had something else, too. It's called money. That's the biggest and best indicator of whether a new business will succeed. It also opens more doors than anything else. I always love watching Shark Tank and hearing Mark Cuban tell aspiring entrepreneurs that he worked as a bartender while getting his first business started. Granted, his family wasn't as well-off as Dell's, but he wasn't JUST a bartender. He was a bartender with a business degree from Indiana University and several years of experience in financial IT. He had plenty of career prospects, all reasonably lucrative, to fall back on if his start-up failed.
If you did that completely on your own without the support of your family, that's a great story, and you really should be proud of it. Understand, however, that you are the exception to the rule. Yes, people who make it out of sheer grit and determination do exist, but, if you're running a business, you're always better off looking for a candidate with education, experience, or the right combination of the two. Hiring on moxie alone is the equivalent of investing your retirement in the lottery.