Becuase they knew what they were doing
It is true that before humans became involved in agriculture, most people were hunter gatherers. Once the humans learned to cultivate and grow their own food, they started settling down in one place. That was the start of the civilization. Before that the humans were mostly nomadic and depended on hunter-gathering for their daily needs.
The rise of big business led to the formation of labor unions in at least two ways.
First, big businesses had more leverage over workers than little shops did. Therefore, workers felt that they needed to get leverage of their own. For this reason, they tried to form "big labor" to combat "big business."
Second, the rise of big business led to lower pay and poorer working conditions for workers. Jobs at the large companies...
