If anything, I think there's an underemphasis on mathematics, especially because students can graduate from high school without taking any mathematics in year 12.
Math is (of course!) essential for natural science, engineering and commerce. But I think a lot of people underestimate how important math is in many arts disciplines. Statistics is absolutely essential in political science and in many different areas of history. Computational linguistics is also a big field in linguistics (especially with AI). And there are many, many more examples.
On a different note, I would highly suggest taking a programming course as breadth or as an elective at university. I think programming is one of the most important skills to learn and I think that a lot of processes that are done by people today will be automated in 20 years time. Once you learn one programming language, it's easy to learn others. Be the person who can automate things instead of being left behind. And this goes for arts students too - one of my friends did a pretty important history internship over the summer, and despite being a history major, had to code to deal with the database.