Final answer:
According to Arnett's research with young people in the U.S., most individuals perceive that they have reached adult status around the age of 24.
Step-by-step explanation:
According to Arnett's research with young people in the U.S., most individuals perceive that they have reached adult status around the age of 24. Early adulthood typically starts around 18 or 21 and continues until the mid-30s. It is a stage when people are at their physical peak, completing their education, starting a career, and forming intimate relationships.