But if he is a liberal arts student and he just spends a lot of time on literature, there is no need for him to study mathematics. Because he should spend more time on his literature or liberal arts, and improving his literary accomplishment is his important content, then he doesn't need to study mathematics.
But most people, if they want to get more contact with science and engineering, naturally it is necessary to study mathematics. Even though he is an adult, he still wants to learn math. After all, he needs to be exposed to mathematics in his life and work. After learning mathematics, he can understand many things through mathematical thinking. In this case, it will be of great help to his life and work.
So the main thing is that we should have this kind of mathematical cognition. We must first understand whether there is a corresponding demand for mathematics in our life and work. If there is, then learning mathematics is definitely necessary. It's not too late to know before you judge.