First, academically, after changing majors, students are not used to new majors like their classmates, and may not understand the difficulty of many new professional courses. Many professional courses need to be re-adapted, teaching rules have changed, and even teachers' teaching styles are different. All these require students to have strong adaptability and anti-frustration ability, and they have to pay more time and energy than other students.
Secondly, in interpersonal aspect, from familiar interpersonal environment to unfamiliar environment, there is great psychological pressure to adapt to the new living environment because of interpersonal obstacles in the new circle.
The third is the comparison of results. Those who change majors are generally top students in the original major. However, after switching to a new major, or because the transferred major is already popular and there are many high-quality students, or because the new curriculum has an adaptation process, there may be a decline in grades and a psychological gap.
Fourth, different majors have different credit requirements. You need to make up some credits after changing majors, which will increase the course burden and tuition.