Because western food is really nothing more delicious and exquisite than French food. Before answering this question, let's first look at the definition of western food. Western food, as its name implies, is a western dish, usually referring to the dishes of western European countries. So, Southeast Asian cuisine, American cuisine and Australian cuisine are all related to? Western food? It doesn't matter. If it's more stringent, it's not even Eastern European food. Western food? What about? However, let's relax and reluctantly admit that eastern European cuisines also belong to western food.
if we draw a line, we can clearly see why French food can be the first in western food. Don't mention Chinese food yet, even Japanese food, which is famous for its delicacy, and Mexican food, which is famous for its rich flavor, are excluded. Therefore, only French, English, Italian, Russian, American and Mediterranean cuisines can compete with French cuisine. Needless to say, English food has been widely circulated on the Internet. Russian cuisine, from the very beginning, was actually learned from France.
In addition to Britain and Russia, there is a strong rival, that is Italy. Although Italian food is known as the ancestor of western food, it may be because the national influence is not enough. In a word, the title of the first western food has not fallen on Italy. Needless to say, American food originally evolved from English food, and it is also famous for its convenience, quickness and high calorie, so it naturally cannot be the representative of western food. German food, because Germans don't pay much attention to food, can't be combined with French food. As for Mediterranean cuisine, it is also impossible.
Therefore, French food, which is famous in the world for its complicated procedures but exquisite dishes, has naturally become the first western food. Moreover, because there are so many etiquette to be observed in eating a French meal, it has become a status symbol over time. If someone can eat a French meal, it means his status is unusual. With this as a blessing, it is not surprising that French cuisine has become the first western food.