Coloring also takes us back to a time when everything was easier. You agree that such activity would seem more suitable for kids than for adults. In fact, painting is associated by most people with the period when they did not have much to do, and carelessness was more than enough. In order to take a little dip into childhood and clear the emotional background, coloring is an ideal option. It seems to take us out of the current stress state and allows forgetting about everything for a few hours.
It is good to give the child to paint a picture from memory, or paint in the opposite color sample, for example, when there is a ready-made picture of a night scene, but the child should paint the daily events of the same characters, etc.