Young Adulthood
"A boy becomes a an adult three years before his parents think he does, and about two years after he thinks he does."
~Lewis B. Hershey
Young adulthood occurs between the years of 20 and 40. Some major milestones that usually happen during young adulthood include graduating from college, establishing a career, marrying, and starting a family. Many changes occur in physical, cognitive, social, and emotional development during this time.