Why do logistics companies recruit freight tallymen with high salaries?

Truck drivers work hard and are often instructed to walk. Moreover, in order to make money, some small logistics companies require drivers to deliver goods rain or shine, and also ensure the safety and integrity of the goods. They will also walk long distances from time to time, and in order to drive every day and night in time, they will also help loading and unloading cars to carry goods. High salary is a matter of course.