Why can't modern people learn calligraphy without inscriptions?

Commonly known as "Hei Hu" in the past, it is not only a work of art with cultural and historical connotations, but also a combination of artistic taste and technological processing. In order to record the important events and grand celebrations of the previous dynasties, famous craftsmen carved literary forms and calligraphers' handwriting on cliff walls and stone tablets, so the stone tablets had multiple artistic contents, and they were also mounted into axes or books, which became stone tablets. Monument is a combination of monument and monument. In fact, "monument" refers to the rubbings of stone carvings, and "monument" refers to the ancient famous ink collected on wooden boards and stones. In the early days of printing development, inscriptions were all important means to spread culture. In the future, people will learn these written materials in order to learn calligraphy or make historical materials.