The correct answer is:
The children are wearing loose clothing. The children are exposed to dangerous machinery. The children are not wearing any protective gear.
These are some of the dangers these child workers were exposed to.

Those probably were freedom, independence and self-reliance. The cowboys represent brave and unflinching individuals who conquer unknown and often very dangerous new frontiers of the Wild West. They brave all the dangers with nothing but their wits and their skill with a firearm which usually is a pistol. They are free individuals in a free open space who are guided by their instincts and their morals.
After the 1928 liberation until the Second Sino-Japanese War in which the city fell on July 29, 1937,<span> Beijing was free. It was made the seat of the Provisional Government of the Republic of China a puppet government of Japanese-occupied China.</span>