What has changed in the lifestyle of Europeans at the beginning of the 20th century?

At the beginning of the 20th century, a circle of aristocracy formed in Europe, consisting of several dozen families. They have become the elite of society. In Europe, individualism and rapprochement with their own kind (in terms of living standards) began to be combined. At the beginning of the 20th century, entrepreneurship began to develop, and a wide working class was formed. People began to devote time to education, since the work required certain skills and knowledge. The equipment at the enterprises made it possible to include women and children in the work. Most of the population moved to cities, the pace of life accelerated. People began to receive salaries by working for hire, their standard of living increased.