Why do waiters who apply for Nanning KFC now need to submit resumes?

In the past, you went to these fast-moving consumer goods places, such as snack bars, McDonald's, restaurants and other places to do odd jobs, fill out a form and take notes. However, after encountering all kinds of problems, coupled with the increasingly complex society, the trust between people is getting worse and worse, which leads to the situation mentioned by the landlord. After all, the resume is more comprehensive and formal than the registration form.