This ignores selection effects. The kinds of people that go to college would probably earn more even if they didn't go to college. It's confusing correlation an

This ignores selection effects. The kinds of people that go to college would probably earn more even if they didn't go to college. It's confusing correlation and causation. Even if college does increase earnings some, there's societal effects. If we eliminated all college education, employers wouldn't be able to rely on that as certification. And so you wouldn't have to compete against that if you chose not to go to college.