Childhood poverty increases the risk of poor health, poor educational achievement, unemployment, teenage pregnancy, criminality and so on.
Addressing it would not only enrich the lives of the children concerned, it would reduce the money we're spending responding to those issues.
To illustrate the impact of child poverty, we've conducted a simple experiment.
Without any advance notice, we asked kids in a decile 10 school, and a decile one school, to show us what they're having for lunch.
Watch the report from Tristram Clayton to see what we found.