I think you may have your cause and effect backward here.
in the 1600′s wealth is the cause of people going to school—not the other way around.
The vast majority of people had no access to schooling at all (unless they joined the clergy and thereby their line ended).
Accessible schooling is a very modern phenomenon.
You may thereby be confusing correlation with causation. Reading and wealth are correlated because the latter causes the former, rather than vice versa.
Genes are correlated with reading simply because wealth is correlated with the ability to multiply and support many descendants. Therefore we should not be surprised that reading correlates with genes, any more than that there is likely a correlation between genes and wearing expensive, fashionable clothing.
I think you may have your cause and effect backward here.
in the 1600′s wealth is the cause of people going to school—not the other way around.
The vast majority of people had no access to schooling at all (unless they joined the clergy and thereby their line ended).
Accessible schooling is a very modern phenomenon.
You may thereby be confusing correlation with causation. Reading and wealth are correlated because the latter causes the former, rather than vice versa.
Genes are correlated with reading simply because wealth is correlated with the ability to multiply and support many descendants. Therefore we should not be surprised that reading correlates with genes, any more than that there is likely a correlation between genes and wearing expensive, fashionable clothing.