Read this: A broad way of defining adolescence is the transition from child-to-adulthood. According to Hogan & Astone (1986), this transition can include markers such as leaving school, starting a full-time job, leaving the home of origin, getting married, and becoming a parent for the first time. However, the time frame of this transition varies drastically by culture. In some countries, such as the United States, adolescence can last nearly a decade, but in others, the transition—often in the form of a ceremony—can last for only a few days.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): Does the time frame of adolescence vary from culture to culture or remain universally agreed upon?
varies drastically by culture