Throughout the past 30 years, how has sports evolved socially, economically, and ethnically? Is this evolution a positive or negative one? Has sports improved the quality of life for all those who are connected to it?

Sports

Throughout the past 30 years, how has sports evolved socially, economically, and ethnically? Is this evolution a positive or negative one? Has sports improved the quality of life for all those who are connected to it IE. players, coaches, fans, owners etc. How or how not. Overall, do sports influence the ideas of society or do the ideas and norms of society influence sports?