The document discusses the emergence of teenagers and youth subcultures in Britain. It provides several reasons for the emergence of teenagers in postwar Britain, including the postwar baby boom, rising affluence that gave young people disposable income, and the rise of consumer culture that targeted youth markets. It also discusses factors that have led to an increase in the number of youth subcultures today, such as larger society size, rapid social change, and increased globalization. Finally, it notes that today's youth subcultures are more fluid and interconnected than classic theories portrayed.