Operations research can be regarded as a mature modeling solution to a certain problem, and learning it well should help you master some existing methods. There are too many aspects involved in mathematical modeling. If you are talented enough, you can learn nothing to shape yourself. There are still some problems, even if you have learned all the knowledge about the earth, you may not be able to make them.

Generally speaking, operational research is very useful, but you just don't know it. After all, different fields are hard to say. Operational research is also quite difficult. If you learn well, at least you can open your mind.