Explanation: Also known as epiphany, an "aha" moment or a "eureka' feeling, insight occurs when a solution to a difficult problem presents itself suddenly, quickly and without warning, usually after several incorrect attempts based on trial and error. As a new way to interpreting problems that immediately yields solutions, insight allows one to be able to see or understand something clearly. Cory therefore has exhibited insight according to psychologists.
When Alfonso says, "It would have been tough to be a father at age 21, but being one at age 28 is super," he is noting the important role that life-cycle factors play in human development.