The correct answer is to help people immediately and provide them with jobs.
The reasoning behind President Franklin D. Roosevelt's actions was the Great Depression. When FDR took office, the US was in the worse economic depression in US history. Nearly 25% of Americans were out of work thanks to different events such as the Stock Market Crash of 1929 and the failure of thousands of businesses. When taking office, FDR knew he needed to act quickly in order to help Americans survive these hard economic times. That is why he created several different federal agencies under his "New Deal" plan. These agencies created hundreds of thousands of jobs over the course of a decade and helped America recover from the economic depression.
In the early 1970s, the post-World War II economic boom began to wane, due to increased international competition, the expense of the Vietnam War, and the decline of manufacturing jobs.
Factory owners used child labour because, quite simply, it was cheaper. Children worked for less than adults, and their parents were often happy to send them off to work, as the lower classes did not value education. Many men lost work when machines were introduced, as machines could do more work in less time, so if the children had the opportunity to work and earn money, they did.