But a part-time job like KFC is to sign a labor contract with you. Although it is a part-time job, you must work in the store for at least one year and not less than a few hours a week. Anyway, you will find that it will delay your time, especially in exam week. You want to review quietly, but you can't settle down to review because you have to work.
Another point is that KFC really only makes money, collects dirty rice or cleans. In fact, this kind of part-time job can't learn anything in the end, just like the part-time job of handing out leaflets and delivering takeout food. College students should find something related to their major, such as studying mechanical major, which can help them make some CAD drawings, and studying computer major can help them write codes, which can help them learn more before joining the job in the future.
So many of KFC's part-time jobs are coolies. Only by improving your professional level will you not worry about not finding a part-time job similar to your major, and your future "worth" will be higher.