Answer:
Forms of child labor, including indentured servitude and child slavery, have existed throughout American history. As industrialization moved workers from farms and home workshops into urban areas and factory work, children were often preferred, because factory owners viewed them as more manageable, cheaper, and less likely to strike. Growing opposition to child labor in the North caused many factories to move to the South. By 1900, states varied considerably in whether they had child labor standards and in their content and degree of enforcement. By then, American children worked in large numbers in mines, glass factories, textiles, agriculture, canneries, home industries, and as newsboys, messengers, bootblacks, and peddlers.