There is a lot of systems what r u asking about
the people of this fair country
Many settlers were willing to leave their homes and head west due to the dream of attaining a better life, usually thinking of the possibility of acquiring free or cheap land. Other ocassions were for example, the "gold rush" in which so many went to California in search of gold. Others went west hoping to find more freedom.
C.) because Child Labor Laws were not passed yet and they had to help on farms.