Because in the past, occupation farmer will use labor from people in planting rice. But today, technology has been used to help. Cause in the future, I think he probably does not have a professional farmer.
Because in the past อาชีพชาวนา will labor in rice cultivation.). But, at present, there is the use of technology to help. In the future, I think it would make no อาชีพชาวนา.