Here's why:
* Syllables are units of pronunciation in spoken language. They are how we break up sounds in words.
* Sandwiches are physical objects. They are made of bread, fillings, and sometimes other toppings.
So, while we can *talk* about sandwiches and break the word "sandwich" into syllables (san-dwich), the sandwich itself doesn't have syllables.
Maybe you're thinking about the different *layers* in a sandwich, like:
* Bread
* Filling
* Toppings
These are parts of the sandwich, but not syllables in the linguistic sense. 😊