What's the use of a chef's certificate?

Chef's certificate is the entry permit for chefs to enter catering enterprises and take up cooking posts, the qualification certificate for workers to apply for jobs, take up posts and start businesses, the main basis for employers to recruit and hire workers, and the effective certificate for overseas employment and foreign labor cooperation personnel to notarize their skill level.

Now, some people think that a chef's certificate is dispensable for a chef. This kind of thinking is one-sided, just like letting a very capable college student refuse his diploma and a teacher with great teaching experience refuse his teacher qualification certificate. All walks of life have their own certificates and their own "stepping stones".