MBA stands for Master of Business Administration.
Entrepreneurship is about understanding a problem/hurt/need of a market and one’s ability to build a business model that delivers a/the solution to the market.
Most MBAs will teach you how to run/manage a business, NOT create/start a business.
Is an MBA required to be a successful entrepreneur?
NO! Successful entrepreneurs work ON the business, not IN the business, meaning they’re focused on making their customers happy, NOT on their management skills.