If you corrected for economic class, you'd certainly still see the same thing -- a culture of literacy improves lifetime earnings. At least anecdotally, I grew

If you corrected for economic class, you'd certainly still see the same thing -- a culture of literacy improves lifetime earnings. At least anecdotally, I grew up rather poor (single mother household, working as greenhouse manager, 4 kids), but we had a strong culture of literacy in my household. Knowing how to read difficult material, and by extension self-teach, was a big part of my ability to move into tech.