Many industries and positions require work on Saturdays and Sundays, such as:

1. People in the healthcare industry, such as doctors, nurses, and medical technicians, where hospitals don't have weekends off.

2. Service industries, such as restaurants, hotels, beauty salons, where weekends are peak consumption periods, so employees need to work with holidays and weekends.

3. People in the transportation field, such as pilots, flight attendants, airport staff, bus drivers, couriers, etc., need to be available because of the high demand for travel.

4. Security industries, such as security guards, police officers, firefighters, etc., need to be on duty 24 hours a day, so weekends and holidays are no exception.

All of these industries and positions require services on weekends and holidays, and they provide services to protect public lives and good living, and they also need everyone's support and understanding.