I think it has to do with the accent. I randomly speak in many different accents and hardly ever stutter when i do. I never watched videos or practiced. The accents are sort of mutated into random ones so it doesnt really sound like an accent from a specific country. I found a bunch of basic articles on this. My stuttering is not as bad as it used to be so i dont really speak in accents that often. But i wish i found out about this when i was younger.