One type of debate that you can have is with your parents. An example of this would be the debate of extending your curfew. This debate normally occurs at home, or over the dinner table somewhere. The purpose that it serves to the daughter/son’s case would be that it would give them more time outside of the home on Friday and Saturday nights. The purpose that it serves to the parents would be to inform the child of why they have the curfew they have, or to inform them how to earn a later one. This debate might end with a better decision or it could have a very bad outcome, such as an even worse curfew. This debate would most likely be unstructured.
Another type of debate that you can have would be with your teacher. An example of this would be the debate over a better grade. This would normally occur in the classroom or some place at school. The purpose that it serves to the student would be to see if they can earn a better grade and to find out the reasons why they earned the score they did. The purpose that it serves for the teacher would be to re-check the students work and see if they did indeed make a minor mistake, or to teach the student how to do better next time. This debate could help arrive at a better decision by helping the student learn how to produce better work. This debate could also arrive at a bad decision by the student of which he/she decides to give up on the class. This would once again be an unstructured debate.
A third and final in my thoughts would be the debate between an employer and his/her employee. The debate would normally occur in the office place, perhaps at a meeting, or at a company dinner. The debate could be about anything from a raise to how to make more profits as a company. The purpose it would serve to the employee would be that they could earn more money or help the company benefit. The purpose that it would serve for the boss would be that they could learn the opposing view of his employee on how the company should be ran. This debate might end with a better outcome for both of the candidates. This debate would most likely be structured, considering they would be facing their employer.