the purpose of that class is to LEARN ABOUT TEAMWORK. it means that you would need to cooperate with others. sure,you can use your clone,but that defeats the purpose of learning on how to work with someone else. in real world,you can use your clone AND fight together with others. but,if you just fill up your party member with your clone,how are you going to learn how to cooperate?
Ahyeon parents reminds me of Richie Richs parents. Handsome, beautiful with good personalities, have expensive imported car, loving, supportive and have harmonious relationship towards their children, and very rich. Definitely would make people envious and maybe hates, if you are westerners.