IQ builds on itself. You gain static intelligence (what you’ve learned) using fluid intelligence (IQ). But learning new things quickly relies on a large body o

IQ builds on itself. You gain static intelligence (what you’ve learned) using fluid intelligence (IQ). But learning new things quickly relies on a large body of knowledge to draw from. Lots of poor people denigrate education. “Street Smart” is considered the only useful knowledge. Lots of these parents literally don’t care if their kids fail out of school (after all, they did too and are “just fine”). These kids never build up that critical knowledge early which nullifies their IQ for life. Bad diet, abuse, crime, high stress, being raised by a single mother, etc also affect IQ. All these things are pervasive in most poor neighborhoods. Parents don’t affect initial intelligence as much, but they certainly affect whether that intelligence is squandered.