A reason for moving through the maturation continuum from infant to child, to adolescent, to adult, to mature is because when one has achieved the mature stage they have the option to experience any of the earlier stages of pleasure. A person at the mature stage has the option of experiencing in the moment the happiness of an infant, the fun of a child, the accomplishment of an adolescent, the satisfaction of an adult and the contentment of a mature person.
The mature person can choose to participate in play with children, and when playing in that way they can choose to have the emotions that the child is feeling. The mature person after a few minutes of child-play can then choose to sit in pleasure and watch the children continue to play and sip their tea with the feeling of contentment that all is well within their world. A child can not sit in contentment and watch other children play; he must find a distraction or suffer.
An adolescent would have trouble achieving contentment watching other adolescents achieve glory while they were having none. An adult would find it unpleasurable watching some competitor to their child or adolescent besting them at a competitive activity. A mature person could watch their relative be defeated by a competitor and appreciate the superior performance or simple luck that often accompanies a victory, even if the win went to that opposition. Their view of the world includes others beyond their family and their personal self.
The mature person has already experienced all the basic experiences and emotions associated with the less mature lifestyles and can intentionally incorporate them within their behaviors. They have the ability to foresee the consequences of behaviors and to make appropriate actions long before the consequences become obvious to others with less experience and thoughtful considerations.
Developing a mature personality isn’t difficult if a person sees the path to that goal and chooses to take it.