You’re describing the exact reason I want to get this information out there! As a society, we have deemed stuttering as not acceptable. It starts when we are very young. Even as early as 5 years old, it’s easy to become very self aware about the fact that our speech is different. Even the people closest to us might notice it and encourage us to “speak slower.” Of course, teasing from friends at school doesn’t help either. By adulthood, we start to struggle more with our speech because we don’t want to stutter. That can certainly make others feel uncomfortable, or even point it out during an interview (I can’t even begin to describe how ignorant and mean that is). Even if stuttering is misunderstood, you would think the average person might stop for a second and think - “maybe this person has some kind of condition that’s out of their control.” Anyways, stuttering is almost never caused by inappropriate breathing, but diaphragmatic breathing can absolutely help with treating stuttering when it comes to releasing tension and just understanding what’s happening to your speech mechanism during avoidance. And, like you said, sometimes this can even make people sound more fluent (though that’s not the ultimate goal) So, kudos to you! And, what an amazing perspective from your best friend’s nephew! He sounds awesome!