Tipping culture npcs

Here in Brazil, tipping is not normal. Instead, restaurants and bars will add a 10% service cost to the bill. This 10% is then weekly divided between cooks, waiters, bartenders, etc, the proportion being decided by the restaurant.

That is of course not a law, but it is so common that restaurant workers already consider that when thinking how much they make. My sister worked as a bartender at a restaurant recently, and she would add R$300 (roughly $60, yes it's not much, but remember we're a middle income country) to her monthly paycheck from this.