Well yeah, if you live in a country where they make a decent amount so that tipping isn’t necessary for them to be able to eat that day then of course you shouldn’t have to tip. That’s the way it should be everywhere. But in many countries like the US this isn’t the case, and tipping has been used as a way for restaurants to pay next to nothing to employ people and the servers are at the mercy of kindness from the people serving them. Lots of these people think that they should just be slaves that serve them for free and justify it by blaming the restaurant, which is just shifting responsibility and making weak excuses for being entitled and cheap.