> Education is not making them that much more productive. It’s certifying them as already being more productive.
How do you measure productivity? And (asking again, since you didn’t answer) how do you measure social waste? Where is the evidence of your claims?
If what you claimed is true, then if the rate of education were to go up, then the income premium for education would go down, because you’re saying the income premium is correlation and not causation of education’s effect on society. But education rates have been going up for the last 50 years and the income premium for education is stable, despite more people being educated. Why?
> Richer countries spend more on education but the extra spending on education follows the getting rich, not the other way around
Your argument is that education is an economic drain. Where is the evidence of that? Even if true that wealth precedes education (and citation is needed there), your argument here is contradicting your earlier argument that education is socially wasteful - countries are getting richer and staying richer with increased education rates, regardless of whether it’s causation or correlation.
Ghana is an outlier with political issues not representative of most of the world, it doesn’t prove much about education. China’s massive economic growth coincides with an increase in education, framing it as being “based” on an uneducated populace because their education rate was lower at the start seems like it’s dodging the inconvenient fact that their education rates have risen while their economy has grown? Why are you so convinced that education is not even part of the cause for their economic growth, or anyone else’s?
You seem to be claiming that education teaches nothing of economic value, does not help people personally gain any skills, does not help people improve their productivity? Is that what you’re saying, and if so why?