It isn’t so much “where do you have to use math?” as it is “can I get more for my money, have more free time, and avoid getting ripped off as much if I know how to set up real life word problems and throw some math at them?”
While you don’t have to use much math in everyday life, being able to can be worth hundreds of thousands of dollars (or more) over a lifetime.
Just please, don’t every try to save more than 100% of something. 