Why are all technicians from Yunnan?

The reason why pedicure shop technicians are all foreigners is that "a thousand troops are easy to get a general", and the qualification certificate of pedicure technicians is difficult to test. Once you have a pedicure technician qualification certificate, it is equivalent to getting a "golden rice bowl" (with a monthly salary of more than 10,000 yuan). This profession is a high-income industry, and ordinary people can't enter and work "casually". This is the truth that "things are rare".