Perhaps you should tip. You may not like the system, but if it ruins your day it's probably worth paying just to keep yourself happy and optimistic. Not to men

Perhaps you should tip. You may not like the system, but if it ruins your day it's probably worth paying just to keep yourself happy and optimistic. Not to mention the person you just declined to tip is likely making minimum wage or even a "server wage" (lower than minimum in some regions) and depending on tips to make the job worth doing.