who made up the lowest class in society
Social class Lower class (occasionally described as working class) are those employed in low-paying wage jobs with very little economic security. The term "lower class" also refers to persons with low income.
Social mobility Education provides one of the most promising chances of upward social mobility into a better social class and attaining a higher social status, regardless of current social standing in the overall structure of society. However, the stratification of social classes and high wealth inequality directly affects the educational opportunities people are able to obtain and succeed in, and the chance for one's upward social mobility. In other words, social class and a family's socioeconomic status directly affect a child's chances for obtaining a quality education and succeeding in life. By age five, there are significant developmental differences between low, middle, and upper class children's cognitive and noncognitive skills.[7]