Starting a business at a young age doesn’t need a particular specialty. University usually benefits those who want to work in medicine, engineering, law, or other specialized matters. As for the economy, everything you learn in 4 years at university can be learned in one month if you spend 18 hours learning from books and videos about economics and so on.
Also, you have to think about the specialty or type of business to learn about.
For example, I have a bachelor’s and a master’s degree, and 90% of what I’ve learned in the last few years didn’t help me with business. So, you have to think about what you’re going to do and what benefits you.