Apart from money, there are many things that a person may need in order to start a business. This also includes skills, experience, and the ability to conduct any kind of business. This is quite important. However, majority of the people do not have experience and they need to work in order to gain experience. In the end, all they may need is money.
When you don't have any of the knowledge needed for you to start a business of your choosing, I would say that the person is never serious about starting the said business to begin with. I'm one of those people who believe having money to start a business is never enough. Paying people to run a business for you is never enough. You need to understand the business as well.