Nowadays many people choose to continue their study to the university. There are some rules that need to be followed after they join the college as a student, such as dress code, number of credits, minimum GPA and attending class. Some universities make classroom attendance as a not mandatory thing because some people can follow the subject without meet with lecturer in the class. Despite this benefit, there are more problems about this idea, and I disagree with it. This essay will examine my opinion and provide the detail of the issues.