Department of Duh
The NYT discovers that people with kids would rather live in the suburbs than in cool urban neighborhoods like mine.
FURTHER THOUGHTS: The Times suggests the reasons for moving are strictly economic, and in hugely expensive places like San Francisco that may be true. But my Uptown Dallas neighbors generally hightail it to the suburbs as soon as their kids start walking, and these are people who already own spacious three-bedroom townhouses. They want yards (even though there's a park two blocks away), less traffic, and less crime. They want suburbia.