cereal isn't soup. The foodstuff in a bowl isn't cereal, cereal is the grain thats in the bowl, it's an ingredient in the dish not the dish itself. Some "cereals" as the word is in common parlance are porridge, a dish that is very different from soup in that its closer to wet food grass than milk with food grass in it.
For something to be soup it must be boiled, so "cold cereal" is completely out, and the majority of hot cereal is porridge which is a different dish to soup. Soup is also defined by the fact that the thing being boiled contains meat or vegetables and for something to be cereal it's primary component part has to be, well, cereal which is a grain not a vegetable.
For something to be soup it must be boiled, so "cold cereal" is completely out, and the majority of hot cereal is porridge which is a different dish to soup. Soup is also defined by the fact that the thing being boiled contains meat or vegetables and for something to be cereal it's primary component part has to be, well, cereal which is a grain not a vegetable.