At the time, America was in The Great Depression, and most women were unemployed(around 10 million). They received lower pay if they worked, and were often expected to stay at home.
Answer:
The 20th century witnessed the birth of modern family planning and its effects on the fertility of hundreds of millions of couples around the world. In 1979, China formally initiated one of the world’s strictest family planning programs—the “one child policy.” Despite its obvious significance, the policy has been significantly understudied. Data limitations and a lack of detailed documentation have hindered researchers. However, it appears clear that the policy has affected China’s economy and society in ways that extend well beyond its fertility rate.
Better ships were available so why would they want to.
The ideals of economic freedom are strongly associated with healthier societies, cleaner environments, greater per capita wealth, human development, democracy, and poverty elimination
I hope this helps =)