Why humans want or need bread?

Answer 1

There is no physiological need for bread. Many cultures have developed cuisines that are not dependent on bread (and by bread I refer to a leavened loaf made primarily from wheat flour). Asian cultures, where the main grain crop is rice rather than wheat, do not traditionally make use of bread. Any human dietary need for carbohydrates can be readily met without recourse to bread.

To make bread as we know it requires a society that is stable enough to be able to raise wheat in quantity, store it, process it into flour and bake it to a consistent standard - all this implies a settled agricultural society with a structured community, a steady fuel supply and a means of production - an oven. Therefore, nomadic societies do not traditionally eat bread.

However, many cuisines include other bread-like products such as chappati or tortillas that can be used to wrap or encase food or to sop up juices. These products are often unleavened, quick to make, do not necessarily require wheat flour and can be cooked over an open fire or by slapping the dough against the exterior of an earthenware oven.

We 'want' bread for reasons of habit, conditioning and convenience.

Answer 2

While bread rolls aren't a necessity for human survival, Sweet rolls are.

Just make sure no one takes your sweet roll.