It is generally accepted that people switch to obscene language when they run out of other arguments. In ordinary life, fists follow. A person who swears shows not strength but weakness. Anyone who knows that he is right is always calm. The freedom to express yourself the way you want speaks volumes about your personality. Intelligent and well-mannered people know the limits of what is permitted, which cannot be said about those who, in any situation, begin to get irritated and let slop out of their mouths.
On the other hand, if a person uses obscene words, it indicates that his psychological state is not at a normal level, and one should not condemn such people but rather feel sorry for them.