Haha. This question is really hard to pin down. can only be established on the basis of inference. But here I really want to help the dog "fight the injustice". I don’t think it’s the dogs who look down on those people. Because dogs simply can’t understand the style and neatness or sloppiness of people’s clothes. Judging from my many years of experience in raising dogs, most dogs are wary of cars because they don’t know what they are. They are wary or a little scared. They are also wary of people pushing or riding these things. Be on high alert. So there was a series of reactions and actions that followed. Another point is that people who work in rag collecting and other professions do not have very high incomes in society, and they do not want to cause too much trouble, so when a dog barks, they will give in and retreat, and it is precisely these actions that lead to Most dogs think they have succeeded and their status is high. So he is as "prestigious" as the big brother of the underworld.
The above is just a personal judgment and not scientific. Please forgive me if I am wrong. hehe.