Honestly, I don’t know. Like… we don’t really do it consciously, we don’t choose to be private about things. We just are. My best guess is that it is because we have an innate distrust of people and the world. We know that anybody at any time could use something against us maliciously. Furthermore, we are possessive. We like things to ourselves. Our thoughts, our memories, our friends/family/love.
Anonymous: Why are Scorpio's so private even over the smallest things?