Yes, many writers are not good at math. But you should know that behind these successful writers, there are still many people who fail in mathematics and want to take the creative road but can't reach that height. Just like many people who want to play e-sports are old and have occupational diseases but are not appreciated by the team. Moreover, in different times, high education is required everywhere, and the total score is the sum of many subjects. Subjects that you are not good at must not fail and drag down the total score. Still have to refuel, at least.