How old can Pizza Hut work part-time?

Age is 40 years old. The recruitment requirement of Pizza Hut is that the age of part-time staff is 18-40 years old (under 50 years old, healthy and able to adapt to the fast-paced work style). Pizza Hut, as one of the earliest western restaurants in China, has a history of more than 30 years since 1990 was first opened in Beijing.