2, children talk back, mostly have their own ideas to express or hope to get a response, he will think that others' angry counterattack will be very interesting, so he'd better keep silent and not respond, he won't get feedback, and he won't feel bored slowly.
Remember, after talking back, don't push it back, but educate it afterwards and talk to it. Tell him that talking back is impolite, boring and unpleasant. Although you talk back for a while, you are actually considered rude by others, and it is yourself who will eventually suffer.