Yes but JSON what everybody knows. I have seen a presentation about a not too small company where the engineer explained how much hurdle is to have JSON everywh

Yes but JSON what everybody knows. I have seen a presentation about a not too small company where the engineer explained how much hurdle is to have JSON everywhere in their big data platform. I asked him why they do not use something like Avro instead. He just gave me this weird look like I am asking something extremely stupid and could not come up with any reason. Some engineers just have no idea of the alternatives or the pros and cons of chosing different file/message formats.