Americans are used to getting what they want when they want it so why not breakfast too. Americans are so used to this lifestyle that the food industry has taken advantage of this. The introduction of fast food and places that have breakfast all day have made billions because they take advantage of this. It has gotten to the point where some americans don't go to the grocery store anymore they just go eat out because they're too lazy to cook a meal themselves. For a link, I'm including the trailer for "Supersize Me", a documentary about fast food consumption.