Hong Miao belongs to simple mechanical training. Generally speaking, you can only make your handwriting look better temporarily, and you can only lead your handwriting to look better slightly, but it is definitely not good for a long time. And painting red is easy to form fixed thinking. Painting red for a long time will make you dependent and used to following other people's ideas. You don't want to think at all, or you have no ability to think at all. Then if you draw red, it will become a mechanical action, and you will get nothing.
The reason why practicing calligraphy can't draw red is not only because it makes you dependent, but also because it is not conducive to forming your own style font, because drawing red can reduce the difficulty of thinking and bring a sense of accomplishment more easily. For some people who have just come into contact with calligraphy, it is a difficult process from reading copybooks to analyzing and summarizing the main points in their minds and then carving them on paper. Describing red can just simplify the writer's thinking process, just describe it according to the scarlet letter. In this way, people will gradually lose themselves and it is difficult to form their own fonts. Your own font represents your creativity. If your creative ability is low, your writing will never make much progress. To put it bluntly, that is to say, your handwriting is nothing and has never changed.
In fact, copying is more recommended for practicing calligraphy. It may be a little difficult to find Copybook for calligraphy with different difficulties in different stages and think while writing, but it is the correct way to practice calligraphy.