5 year olds' superiority

[enigmatics]

This question has been asked to hundreds of kindergarteners across the country, as well as adults. The results are quite startling, where the majority of youngsters get it right, right away and the adults struggle to even come up with an answer. So here goes........

Rich people need it, poor people have it, God can't do it, and if you don't eat it you die. What is it?