What you do is who you are. It was a surprise to me that not all fathers read math books for enjoyment in their spare time. It was a surprise to me that peopl

What you do is who you are. It was a surprise to me that not all fathers read math books for enjoyment in their spare time. It was a surprise to me that people study things they're not interested in. I've noted elsewhere in this thread the difference between doing things "because it'll be good for the kids", and doing things that are good for the kids because it's what you do every day. So it could be that parents who do these enrichment activities but don't "live it" are dragging the average down. I'm not sure how you'd test for "preach it" vs. "live it", though.