First, it is still difficult to make a living by handwriting, unless you are a well-known writer, that is, a writer who signed a contract with Taobao Wenchuang Store or a famous V on some platforms.
Second, there will be copybooks in the idle fish. Through my observation, as long as your handwriting is not particularly ugly, people with a certain sense of picture will generally like it and will make an appointment with you. Of course, there are also some handwritten gods on the idle fish, and their fans have a high sales volume.
Third, Taobao will have a shop specializing in writing or selling handwritten products. The sales volume of such shops is not very large, and as far as I know, the income is not very stable. The calligraphy of some shops looks good as a whole, but the calligraphy skills are not very particular, mainly the overall aesthetic feeling and accessories (such as good-looking paper and mounting).
Fourth, my personal word platform is relatively narrow (circle of friends), Buddhist. After all, it is really unrealistic to make a living by writing. At most, you can only make money by collecting paper and ink as a hobby. Moreover, people who practice handwriting generally don't care about this one or two dollars, mainly because they will have a sense of accomplishment, because it is still a happy thing for someone to like their own handwriting!