Everything positive in the world correlates with increased education level. Even lifespan. People with a BA live 3-4 years longer than without. But I'm under

Everything positive in the world correlates with increased education level. Even lifespan. People with a BA live 3-4 years longer than without. But I'm under no impression that if we extended mandatory schooling to the age of 22 the average lifespan in the US would shoot up 3 years.