The problem with government schools in America is that they train students to see the government in a positive light. Public schools are funded and controlled by the government, thus they teach that socialism is good. Then young adults have to spend the rest of their lives learning the truth in the real world. Many people are never able to see past the government propaganda they are indoctrinated with from early childhood.
The older an adult gets, the more socialist countries they see collapse into dictatorship, starvation, and death. I remember back when Maduro first came to power the far left news media in America claiming it was the future for everyone and how successful Venezuela was. My parents generation remembers the lies and collapse of the Soviet Union and my grandparents generation watched “the Great Leap Forward” in China. Hundreds of millions of people are murdered by their own governments.
Socialism is inherently unstable because once someone stops working but keeps on getting rewards, everyone else stops too. Then the leaders have to force people to work and thus the socialist-dictatorship cycle is completed. It happened everywhere from Karl Marx’s Germany under the National Socialists to many countries in Africa, South America, and Asia.