Why are Elevators are important?

An elevator is wonderful. It is really only a small room. Rooms usually stay in one place. Elevators travel up and down all day long. Sometimes a worker stand in the elevator. He or she run it up and down. In modern elevators there is no worker. The people work in. They know what floor they want. They push a button and the elevator goes to that floor. It is all very fast and easy.Elevators are very important to us. Why? Think about a tall building. May be it has twenty floors. May be it has fifty or more.Who can walk up all those stair? May be people can climb them one time. Can someone climb thirty floors to an office every day? Can small children walk up to their apartment on the twenty-fourth floors? Can their mother or father carry up all those stairs? Of course not.We can have high buildings because we have elevators. We could not have all the beautiful tall buildings in the world without elevators. They are really wonderful.