Wang Laocai is great. Although tofu is usually sold for a dime or two, it is this small matter that makes the author feel another glorious side of Wang Laocai. This is the answer I found out. )

My understanding is:

1, Wang Lao digs because he cherishes the fruits of his labor. He has a kind heart, so he will give tofu to the little girl. His treasure for the fruits of the workers is manifested in his squatting down to pick up beans.

From the beginning, the author unilaterally thought that Wang Laocai was stingy. Seeing this scene, he understood the hardship and kindness of being a laborer, so the author suddenly felt that Wang Laocai had become higher.

I hope you are satisfied with my answer ~