When you say people what's the percentage? Because I think your question actually generalizes it which makes it absolutely incorrect. There are lots of people that prefer to degree over business and some that prioritize getting both. Getting a degree is not something that should be compared to a business because they both play different roles. If you think that a degree is going to help you then it's important for you to get it.
The problem with getting a degree is that you might not really get a job instantly or get a job of your choice which makes business a good option. But no one should undermine getting a degree, this comes with a lot of advantages, if you are in the right country this could give you a push that would be favorable to you and in terms of starting a business having a degree could also help you facilitate some aspects of it.

