Do you have any evidence that people who stutter have a fear of social rejection and that's what leads to stuttering? Short story for you: People were working near my house the other day and I was curious about what they were doing, so i walked up to them and initiated a conversation about what they were doing. Not a single thought came to my mind about whether they were going to socially reject me or not. We got talking, some dude had an accent that sounded familiar and I asked him where he was from and he was from the same country my family is from so I had a bit of excitement. We talked some more, I stuttered a little but there were 0 thoughts of social rejection before the conversation, during the conversation, and after the conversation.