That other tribes did not engage in commercial trade, or urbanise their societies, or mint coinage, is probably a combination of circumstance and choice.
In their rush to urbanise this seaside city, they are pushing ahead with plans to turn the last few remaining untouched parkland-like areas in the city into a concrete jungle.
Once they started to urbanise people had less time to spend cooking, preparing and growing their own food, and started having to rely more on takeout food and eating out.
As societies become increasingly urbanised with more people living in cities, city parks and gardens have become the main point of human contact with nature.