vending machine

In this society ,everywhere you can find vending machine , therefore ,if you want to buy some food drinks and something else you can buy from it,it is very convenient.Who are the consumer of vending machine? you might know.For example when you go shopping you are very thirsty,you want drink some water ,,but there are not have store sell water nearby,but there is a vending machine provide water,you must to buy it form vending machine ,because you are no idea to buy water except it. When you are working, you are so busy ,but you do not have time to buy food from restaurant,but you company provide a vending machine of food, you will buy food from this vending machine.Also some children like use it ,because they think it is very interesting ,you just need put a coin in and you can printout the food.....
Vending machine have a lot of consumer,but they also need lots of staff to protect it.
but there are somr disadvantage of it,it have a limited space,therefore it can not sell a lot of product,they just can a little.
And some vending machine sell fresh food,thus the company who provide this machine,they must find soe people to protect it,and change food .Spend money on protect this machine .Because this machine it is not very strong. therefore they need protect them avoid the machine destroy.
That is all.,thank you for your reading.