The calligraphy class is composed of calligraphy graduates who have been trained in calligraphy professional courses and received systematic calligraphy education. Being born in a major embodies professionalism, and its opposite is amateurism.
Some people are calligraphy majors, and some people become calligraphy amateurs through self-study. However, when it comes to the level of calligraphy, those who have majored in calligraphy may not necessarily write better than those who are amateur calligraphers, and everyone's cognitive level of calligraphy is uneven, resulting in mixed evaluations.
I don’t know what I explained above. Does the poster understand it?