[fiftyfifty]

There is a lot of evidence that I think backs up your anecdata. For example Massachusetts has the highest performing public school system in the US (arguably, but by many measures) and their curriculum is based on the content heavy Core Curriculum (not to be confused with the watered down Common Core) created by E.D. Hirsch. Hirsch was a college professor and his argument is that knowledge is a significant portion of literacy, he witnessed this first hand trying to teach college freshman that simply didn't have the background knowledge to understand the college level books Hirsch was teaching, even though they had no problem reading the words. Hirsch's books "Cultural Literacy" and "The Schools We Need and Why We Don't Have Them" go into detail about this and he has some essays available online that are worth reading.