Final answer:
The Roaring Twenties was a youth culture characterized by rebellion against traditional values, embracing a new permissive morality, and engaging in unconventional activities.
Step-by-step explanation:
The Roaring Twenties, also known as the Jazz Age, had several characteristics that made it a youth culture. The decade was marked by a rebellion against traditional values and a permissive new morality embraced by many young people. They listened to jazz music, frequented nightclubs, and engaged in activities that were considered unconventional at the time, such as drinking and smoking. The flapper, a female stereotype of the era, became a symbol of the youthful rebellion, with short hair, shorter skirts, and a carefree attitude.