Politics creates schools with different reading lists, different histories, different values. Some foreign students and some immigrant students have language difficulties, and values that effect learning and teaching. The student population lacks common references, such as a knowledge of Christianity, which impacts teaching western art history. Cultural relativism has taught some students to feel alienated. Some faculty unfairly stereotype students.
Students have difficulty in communication and comprehension.
Students may violate ethical standards such as plagiarism. Students are more poorly prepared in basic non-computer art skills. They lack training in drawing and drafting, perspective, visualization, etc. Teachers cannot assume an entry level of skill or knowledge and must often present remedial or elementary information. Teachers do not enjoy this.