I'll give you a personal opinion (I'm not good at math): I advise English majors not to start math when they are freshmen and sophomores, because as English majors at that time, they have to spend a lot of time laying a good foundation and practicing their listening, speaking, reading and writing skills. If they start high numbers, it will really take up a lot of time for most people.
But mathematics is a basic subject and may be used in the future. Many people later took math exams across majors. In addition, in the English postgraduate stage, learning some statistical knowledge is very helpful for future scientific research. Therefore, my suggestion is that it is best to offer advanced mathematics to the senior year, which can appear as an elective course, or to combine mathematical knowledge with language application to offer a course, which may be more effective.