Why is mass culture often described as a democratic phenomenon?

A mass culture is a common culture experience by large numbers of people with the same purpose, which was often described as a democratic phenomenon for it embodied freedom to new culture and give opportunities to learn other people’s cultural practices through books, libraries, art galleries, museums and motion pictures.

answer; /// i believe that they became successful farmers; ///////////////

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.