What Leads to Occupational Cliches?

According to Philip Kasinitz, a sociologist with the City University of New York, "social capital - family connections and contacts - created those
occupational associations, and still does, even as the immigrant groups
change." One interesting, and highly visible, association is between Senegalese immigrants and the mobile tables or carts selling umbrellas, handbags, hats and scarves "on sidewalks all across the city."

Those caught without an umbrella in New York in a downpour are surely aware of the prescient ability of vendors to prepare for such events. Of course, as NPR describes, there's a science to their business. "'We know ahead at least five days,' says Cheikh Fall, who set up his table near Radio City Music Hall on a recent afternoon. Since
the sidewalk vendors depend on the elements, he says, they follow the
weather forecasts religiously."

"Fall says he can support his family doing this, but there's no money
for extras. So he's trying to move up. Like so many of the city's
pushcart peddlers before him, he's taking his business indoors; he and
his wife have opened a shop in their Harlem neighborhood."

"Perhaps
in a generation," notes NPR, "vendors like Fall will all be shop owners, making the
Senegalese sidewalk vendor as archaic a cliche as the Jewish tailor and
the Italian greengrocer."

"When asked to
speculate about what newer immigrant group may soon fill a new
commercial niche in New York's vibrant melting pot, sociologist Philip
Kasinitz says Tibetan women are quickly moving into the child care
business."