>>21556865
>you can make it less expensive by simply not tipping
Americants have to tip, it is literally a key component of their culture.
When they give a tip, they do it in remembrance of the tip that was taken from them shortly after their birth. It is in effect a symbol of their communal struggle that they unite under. If they do not tip, then they must acknowledge what it means to be tipless. Thus the tip for the food acts as a sacrificial offering in a spiritual sense that some day in the future all their tips will be restored and they were not lost in vain.