MBA is really valuable?

From January, I've studied business, especially accounting and finance at business school in Japan. I had a question that as a consultant, I really learn the skills to solve the problems on this VUCA world in 1/1 in 2021. I had no idea this question, but I felt probably it is not sufficiently I leran in jobs in the firm and projects because the knowledges and skills I leraned become unuseful by the time, and it is the dots of the business. In other words I think only a part of business I could understand.

So I decided to go to the business school. After guraduation, I'll get the MBA. It maybe is not bad, but I can't throw away the question that "is it really valuable?". Of cource learning knowledges and sukills is  interesting, but I don't have the confidence it is useful. 

Anyway now I think only my way that I can select is believing MBA is worth learning beacuse it is the basic to do business. If I can't beleive it, I face the difficult situation. I want to enjoy this time of life.