Coloring pencils or markers are useful for the development of fine motor skills. After painting the small objects, the child learns not to go beyond the boundaries of the drawing and trace the thin lines.
There is no artist, who would buy their children coloring books or taught to paint pictures. What does this mean? Coloring is a kind of framework, hindering the development of the imagination. They contribute to the formation of habits of the finished drawing, in which a flight of fantasy and free creativity is almost impossible.