Reasons why the United States’ economy shifted from a subsistence economy to a market economy?

A subsistence economy is an economy directed to basic subsistence (the provision of food, clothing, shelter) rather than to the market.[1] Henceforth, "subsistence" is understood as supporting oneself at a minimum level. Often, the subsistence economy is moneyless and relies on natural resources to provide for basic needs through hunting, gathering, and agriculture. In a subsistence economy, economic surplus is minimal and only used to trade for basic goods, and there is no industrialization.[2][3] In hunting and gathering societies, resources are often if not typically underused.[4]

they remained in rural areas and worked at jobs such as lumbering or farming.