Interests and advantages: Older graduate students may be more interested in liberal arts, or have stronger learning and thinking ability in liberal arts. They may be more willing to learn in-depth knowledge in humanities fields such as culture, history and society, but have little interest in natural science fields such as mathematics.

Career planning: Older graduate students may have some work experience and a clear understanding of their career planning. They may choose liberal arts majors because these majors are more in line with their future career development direction or can better meet their interests and needs.

Study pressure and time limit: Postgraduate entrance examination is a task that takes a lot of time and energy, especially for older candidates, who may face more study pressure and time limit. In the limited time, they may be more willing to focus on the fields they are good at and interested in, rather than spending too much time in unfamiliar fields such as mathematics.

It should be emphasized that mathematics has important application and value in modern society. It can not only help people to improve their logical thinking and problem-solving ability, but also be the basis of scientific research and technological innovation. For some majors and fields, knowledge of mathematics may be necessary. Therefore, choosing a pure liberal arts major does not mean that numbers are useless, but that older graduate students pay more attention to their interests and advantages and choose their own professional direction.