It is quite a common phenomenon that college students are enthusiastic over getting all kinds of certificates, such as accountant certificate, teacher certificate and so on.What is the reason for that?And it should be advocated or not?

　　这是一个相当普遍的现象，大学生都热衷于获得各种证书，如会计证书，教师资格证书等。这是为什么呢？应不应该提倡呢？