You can cultivate your self-cultivation, increase your connotation, and let your child have a good personality, which is the embodiment of temperament.
I strongly recommend boys to practice calligraphy, because when they stand and practice calligraphy, they exercise healthy qi, which greatly changes their own temperament; Another advantage is that it can make boys less impatient, and regular practice can make boys calm and concentrate, which is of great help to learning.