1. The topic is thoughtful and provides material for researchers to be lazy;
2. You can find some applicants to apply for a project fund. These candidates are often people with more face but less scientific research ability;
3. It is relatively easy for college students to get together;
4. College students are closest to the society, which provides statistical significance for social stability;
In fact, college students with mental health problems can't learn anything, but they often put forward many theories, and foreign countries generally don't look at what they learn. . .