The other thing that I've been noticing is how many children have checked the box indicating that their family income is less than $20,000/year. I have a hard time imagining living on that as one person. I think about the sacrifices that these family must make to make ends meet. I wonder how these kids pay for good running shoes...maybe they can't afford them. I can't help but feel privileged and at the same time called to help these poor families in whatever way I can.
The good news is that neither of these 2 data points seem correlated. The kids from poorer families seem to have the same distribution of happiness as the privileged kids. Maybe money can't buy happiness after all.