<span>Bart's experience is a great illustration of the foot-in-the-door phenomenon. In other words, once Bart allowed himself to become involved in a minor experience of unsavory behavior, it became easier to persuade him to become involved in more serious detrimental behavior.</span>
Throughout the history we can see a trend of giving citizenship to more and more people, rather than just to elites. For example, in the early stages of history only men possessed citizenship, and also significant portions of societies did not have the country's citizenship, such as in the case of slaves.
In Erikson's Third Stage of psychosocial development, preschoolers are challenged to control their own behavior
This stage is known as the initiative vs guilt stage
hope this helps
