because the emotional aspect is the main trigger for stuttering to emerge in early childhood development. A child is born with a genetic predisposition for speech disintegration to occur more frequently. When they begin learning to speak, it is natural for emotions to influence speech, just as they do for any other human being, and this is when stuttering starts to appear. However, the full genetic potential for this was already present. At first, stuttering is "purer" in the sense that the child has not yet had time to develop strategies to compensate for it. As the child becomes aware of their stuttering—that is, they realize they stutter—they begin to develop intuitive strategies commonly used by people who stutter. These include applying more force when a block occurs, deliberately repeating words multiple times, substituting words, using repeated sounds or words as "crutches," among others. The second aspect I mentioned (which is more behavioral) arises as later strategies that people who stutter develop—poor strategies—to cope with their stuttering. "Easy onset" is the name of a strategy widely used in speech therapy that aims to do the opposite of applying force at the beginning of speech to improve fluency. You can look it up—there are articles about it.