Which isn't quite as rare as you seem to think! Certainly not at your age. Perhaps as a lash against social mores and the general concept of politeness, a self-importance typical of the young man, and it is almost always a young man, who thinks he's the first to have had the ideas he holds, that these ideas are faultless and should be held by all he encounters.
From one former arrogant teenage boy to another, you grow out of it.
voice;
From one former arrogant teenage boy to another, you grow out of it.