Why don't calligraphers sell couplets?

Calligraphy coffee regardless of occasion. In the wrong place. The font is not dignified enough. The center of gravity is unstable. The whole glyph structure gives people a feeling of crumbling. The strokes are not thick enough. This pen is not clean and tidy. Some strokes stick together. It doesn't feel beautiful People naturally don't welcome such Spring Festival couplets.