However, artists' works are valuable only when they are famous, and so are calligraphers and painters. Your father always says that he is far from a real calligrapher, which may be modest, but if his handwriting wants to produce economic benefits, it must be famous in a certain area and scope, from small units and communities to big counties and cities. If he wants to be really famous in calligraphy, it is essential to take part in some competitions. Participating in certain social activities is also one of the promotion methods.
Of course, you'd better ask your father if he wants to become famous and start a family first. Maybe he is just a hobby, cultivating sentiment, not wanting to be famous, just for leisure. We should still do what he thinks.