In Spain, "going Dutch" is attributed to Catalans, due to a stereotype that they are greedy. A stereotypical non-Catalan Spaniard would compete to invite the group.
In Italy, the expression pagare alla romana can be translated as: "To pay like people of Rome" or "to pay like they do in Rome". It has the same meaning as "going Dutch".
Curiously, in South American countries exist the Spanish phrase pagar a la americana (literally "To pay American style") which refers to a treat attributed to North Americans or Canadians.
Natalia: Yeah so do I.
Christopher: I am not paying for anyone's food.
John: Great, so everyone can GO DUTCH
Natalia: Going Dutch is a great idea.