When americans get home after a long and hard day of work, they dont have a lot of energy left, so getting in the kitchen waisting a little bit of more time and washing plates is something they want to avoid, so they go to the neirest resurant and order food, this way the can get a good services and also they can get better food that at home becouse people in the kitchen are experts in most resturants.

So i can conlude that americanss prefer resturants for to basic ideas, to save time and to avoid extra work after there tierd.