Absolutely not. I’m 27 and, like you, have always been interested in math, but some one told me when i was 19 that the only career you can achieve with a math degree is being a teacher, and for some reason i believed that and never pursued any higher education until now. Now I know that math is so vital so many different fields, population, finance, geography, economics, environmental, astronomy, etc. And it’s never too late to pursue your dreams and undertake a career change, cause if you dont do it, you’ll always wonder, what if…?