Time teaches man everyday, new horizons of living open with the passage of time. Every moment is joyful if man can plan, organize and set his priorities of life.
Teenage is memoriable phase of life where there is no responsibility on shoulders. A growing child celebrate the occasion with family and friends, lives in dream world have a objective and goals in mind, dream success in every aspect of life, spent time in sports and extra ciriculam activities, enjoying victories, engages most of the time hobbies, no financial liabilities and no worry about money. During this span academic career is the only focus and teenager learn from books these liability free life make the happiest time for some people.
Adulthood is the stage of life where man takes his responsibility, thinh about his career, accomplishing his childhood desires, think about family, working hard for career growth, having a lot of energy, faces challenges independetly, engage him self in social network, thinking about professional growth, trying to fullfil his dreames. This is time when individual executing his planning breaking milestones and setting the direction for ultimate destiny and glory of his life which makes his adulthood happiest despite of challenges.
In my opinion adulthood is the best part of life because of practical exposure teahes man everyday, freedom of decessioin is the second positive side of this stage. The third and most valuable part of this time is you transfer and teaches the upcoming generation with your experines and transforms their future.