The brush is soft, and he must write coherently, so as to look good. There are too many people around, and the hard pen can't write well, but the brush can write well, probably because the two pens hold the pen in different ways. Brush writing can only be coherent, not a stroke, but a hard pen can be coherent. Many people don't have to look at the brush strokes, but they have to look at the hard ones, otherwise your strokes will not know where to go.
I write well with hard pen, but I can't write well with brush. Why? Because the two kinds of pens feel different, sometimes you write with a hard pen, and the pen is heavy, while you write with a brush. If you weigh it, his pen and ink are too much and heavy, giving people an unsightly feeling. Hard writing is not as demanding as brush writing, as long as he can understand it. Everyone's handwriting is different, which may be the unique charm of hard pen, while soft pen and brush pen feel exactly the same.
There are many kinds of brushes, and the feeling of writing is different, so people who practice brush writing must choose a good brush instead of a rough brush, while hard pens only have different pen diameters, such as 0.28 and 0.5, but the feeling of writing is similar, but the diameter of the words is different. In a word, I prefer hard pen. It doesn't take much effort, as long as you can understand.
Hard pen and brush writing are completely different. A good hard pen with a brush is not necessarily good, and a good brush with a hard pen is not necessarily good. The two can't be grouped together. So choose the pen you want and practice hard.