Daddy Issues

When my wife had our first baby, I, like many new dads, discovered that infants now come with carrying cases. There's the Baby Bjorn, for strapping Junior to your chest; the cloth sling, for the hunter-gatherer look; and the backpack, for the man who prefers to pretend that his child is camping gear.

The baby carrier is a symbol of a generation of dads--the Baby Bjorners--who, because of spouses' careers, the desire to be involved in their kids' lives, divorce or simple fairness, are doing more of the physical work of parenting. But it's also become a ubiquitous TV and movie...