Left are German immigrants, Quebec City 1911. Right are Italian farm family pick berries, 1910. The different between these two pictures is one see like a middle class and one are lower class. People from the lower class need to work hard in order to support their children.
Since the people in the lower did not have skill as much as the people in middle or higher class, what they could do were some physical works or some hard jobs. Unfortunately they had no choice.