The reason is:
1. More and more mathematical tools have penetrated into various disciplines, which can be seen from the dependence of economics on mathematics today. No matter what job you are engaged in in in the future, it is beneficial and harmless to understand and master the basic knowledge and methods of advanced mathematics;
2. Even if you don't actually use advanced mathematics knowledge in the future, mastering the thinking mode of understanding mathematics in the learning process is of great help to cultivate the order and rigor of analyzing and dealing with problems and improve the logical thinking ability.
In addition, don't be too utilitarian in learning anything, just as you don't have to be a writer to learn literature and a performer to learn musical instruments. A person with good comprehensive quality will definitely have an advantage in finding a job in the future.