A few years or even thousands of years of cultural essence, it should have its own value, and we can easily find some information about what calligraphers wrote in history, such as Huang Tingjian and Zhang Xu. Their fonts are different, even if one writes regular script and the other writes cursive script, but we will find that everyone in history, even if their calligraphy is a big category, has shown absolutely different styles and temperament.
Calligraphy is originally something that gives play to a person's personality and spiritual temperament. Everyone's handwriting should be different, but we can judge whether this person's handwriting is good or not according to an intuitive standard. If he doesn't even know the basic rules, such as calligraphy, when writing regular script, when the order of writing is changing, he should look at it from this angle. He can have his own style changes, but he can't disobey these basic requirements, so he is not a regular calligraphy.
Only our Chinese characters have calligraphy, and the languages of other nationalities only faithfully play the role of information recorders, without artistic expression. This should be something we should be proud of, but calligraphy can't be a restriction, everyone can play it, or it can be a fixed rule. Everyone must write calligraphy in this way, so it doesn't make much sense and it is impossible to create a master of calligraphy.