Where does the developmental life stage of emerging adulthood usually appear?

The developmental life stage of emerging adulthood usually appear usually during 18-25 but can be 18-29 (Arnett, 2000). It is the period of exploration or they want to try something new. Or in other words, Features of Emerging Adulthood is: First, the age of identity explorations. Second, the age of instability. Third, the self-focused age. Fourth, the age of feeling in-between; and lastly, the age of possibilities.