1, the back kitchen doesn't need to deal with people, which is very laborious, but the front office needs to communicate with people and handle things flexibly, which is very laborious.

2. After finishing the dishes, the kitchen has completed its duties and can have a rest, but as long as it is working hours, the front office can't slack off.

3, the kitchen can sit, but the front hall needs to stand all the time, running around, passing food, etc.