Discuss the origins of the postwar (post-WWII) youth culture.

The youth culture that arose in the United States after
WWII had its origins in the prosperity that the country was experiencing at that
time.

After WWII, American youth had, for the first time, a
great deal of money and a great deal of leisure.  In past times, youths went fairly
directly in to the workforce because their families needed them to.  They did not have
much in the way of money to use on consumer goods and services.  After WWII, prosperity
came to the US and youths had a great deal of money because their parents could afford
to give it to them.  They also had a great deal of leisure time because they were
remaining in school for much longer.

Since youths had money
and time, they were able to develop a youth culture in the postwar
years.