Because they needed social struture
The U.S. used every form of media to promote propaganda, including radios, posters, leaflets, comic books, movies, magazines, newspapers.
Answer:
be and easy and lazy way to make money
Actually, yes, it happens everywhere. most of the time some people believe in their own beliefs and get too hard headed and shallow to even process that not everyone has the same beliefs/practices that doesn't mean they're right nor wrong just different. like Atheism & Christianity; its a huge topic people discuss that usually always turns heated.
