as the family works and begs in the city, what do they think of the foreigners they encournter? what purpose does the author serve in including these description?

As the family works and begs in the city, they think the foreigners are impatient and ill-tempered. When they first arrived, Wang Lung and his family could not understand them under their accent, and the men make fun of him for being a country man. The author includes these descriptions to convey the difference in lifestyles and societies throughout China in this era.