Well, you wouldn&#x27;t expect to, right?  That&#x27;s a category that doesn&#x27;t exist UNTIL you get married i.e. you&#x27;re not a househusband&#x2F;housewife until you&#x27;re a husband&#x2F;wife.  That&#x27;s obviously a somewhat contrived subset, but admittedly this is ONLY looking at married couples.<p>I&#x27;d be more curious how it handles change of career, for example.