Because there are people in the world, and people want to factor in life, and several factors to use. That means the money is an important intermediary in the exchange of things.
Because in the world there are people, and people want to factor in life and many factors have to use the money to buy it. That means that money is a key intermediary in the exchange of things.
Because in the world there are people and people need to factor in the life and many factors must ใช้เงินซื้อ. That means the money as a medium important to exchange things.