Question

Why did child labor occur? What were the practical reasons for it?

Answer 1

child labor occurred because it's easy to enslave children, it's easy to enslave children when one is born every day, and one "practical" reason for it would be price

Answer 2

It occurred because it was cheaper and businesses could retain more money and underpay their workers. The practical reasons are that children are faster, they can fit into smaller spaces and are more controlled.