It is indeed more convenient for young people to order food by scanning the code, but it may be very troublesome for the elderly who can't use smart phones.

1. In the mode of scanning code to order food, customers can place orders by themselves, saving manpower. This lightens the work for the waiter.

2. scan the code to order food without making mistakes. Compared with the waiter's ordering, the guest can scan the code to order food more accurately, and there will be no misunderstanding in the process of ordering food, such as misreading and unclear hearing.

3. At present, the epidemic situation is still widespread, scanning code to order food reduces the contact between people and reduces the risk of infection.

therefore, it is more convenient to scan the code to order food for some parts. However, restaurants should also set up people to order food, so as to prevent the elderly from not ordering food.