Some people want to experience part-time life, so they choose to work and study. Because college students don't know much about society, they are afraid of being cheated by some unscrupulous businessmen. Therefore, even if you say it well, you may not dare to try some work outside, but the work-study program at school is more reassuring, because if you are cheated, you can go to the school leaders to report it. So under such psychology, they will go to work-study programs and try a life they have never experienced before. Although they are not short of living expenses, this kind of life seems to be like entering the society and starting work in advance, which makes them very fresh.
There are still some people who desperately want economic independence, so they choose work-study programs. After entering the university, some people will feel that it is not good to ask their parents for living expenses every month, and they are eager to achieve economic independence. However, due to their academic performance, there are no scholarships issued by the school, and they can't pretend to be poor students to get subsidies, so they try various part-time jobs. Work-study program is only a part-time job that they think is the most secure. After a try, they found that this part-time job was ok, so they regarded this part-time job as a long-term job during their college years.
There are still some people whose families are not poor, but in order to reduce the family burden, they choose to work and study. I almost belong to this kind of person. My family is not so poor that I am not qualified to apply for poor students. But I really want to lighten the burden on my family, so I study part-time and part-time. No matter how much I earn, I just want to lighten the burden on my family. It is this kind of psychology that makes me insist on work-study program, and only in work-study program can I gain a lot of experience that I can't get in my study.
To sum up, students who do work-study programs are not poor. They may choose to do work-study programs because of curiosity, financial independence or other reasons. I'm very supportive of work-study programs, because I'm doing it myself, and it's really good to be asked for money at home after my salary is reduced.