TV, radio, public school, computers, video games, rock & roll, rap, desegregation, etc.
I guess I was really looking for concrete examples and examples prior to the invention of or not related to the use of electronic technology.
For your non-technological items in your list, I don't see how public school, rock and roll, and desegregation are or were remotely related to experiments being ran on children by society.
Books, newspapers, concert halls, education ...