Risking a stereotype. In my experience from traveling the world it's a tell-tale sign for being from a culture heavily influenced by the Protestant work ethic. Introduce yourself like that in Spain, Italy, or Brazil and you'll get strange looks.
On the flip side, I've found that people who do not define themselves through their work primarily often do so through family. My younger self is certainly guilty of giving someone a strange look when within the first five minutes of meeting them, they told me whose cousin they were.