If you like to do business economically you can study economics, but there are many successful entrepreneurs who do not go to universities that they are rich from their own experience as well as their bravery so the need to study economics is not necessary.
In my opinion, the economy is the thing that everyone is interested in. You can do anything that you like, you can study science, play sports.... but the end result is that you get how much profit to feed yourself and your family. That's why the economy would attract everyone.