How did the New Deal change things for American Workers?

The New Deal changed the role of government completely. Before the New Deal, government had essentially no role in steering the economy or in providing for the people. After the New Deal, the government has come to play a huge role in both of these things.

Before the New Deal, the government was expected to be more or less laissez-faire. It was supposed to just stay out of the way and let the economy rise or fall "naturally." If people were too old to work, they needed to rely on family. If a bank failed, its depositors were out of luck. The New Deal changed all of that.