Free condiments etc are free in the suburbs but urban/urbifying places will typically restrict you to X packets per Y possibly as a cost cutting measure. I woul

Free condiments etc are free in the suburbs but urban/urbifying places will typically restrict you to X packets per Y possibly as a cost cutting measure. I would guess that the packets cost $0.10 or more each. 10 ketchup packets might cost the restaurant as much as the profit margin on a medium fries. Soda refills are almost free, the cup costs more than the soda, so besides avoiding an obesity epidemic, the customer satisfaction of giving free refills is probably worth it. Also it probably costs more to pay someone $15/hr to just fill sodas, when you can get the customers to self-service for free.