This post from the United Kingdom goes more in-depth on why math is important. Whether your students aspire to study sociology, psychology, physics, biology or even economics, math is held in high regard and will be required as part of their jobs.
They posit that math is also relevant to a wide variety of academic subjects, which not only means that a poor understanding of math can cause students to struggle in many other subjects but also that it could limit their further studies options as well as their employability when it comes to career options.