Which of the following is not a characteristic of automatic vending?
1
It offers a variety of merchandise such as snacks, beverages, and magazines.
2
It involves self-service and 24-hour accessibility.
3
It requires face-to-face interaction between customers and sales staff.
4
It is commonly used in places like factories, airports, and malls.
5
It has one of the highest vending machine densities in Japan.