“Cannot be confirmed” and “definitely incorrect” are not interchangeable but you are using them as if they are. An unknown can be unlikely but you can’t rule out that his parents, by their actions, triggered something in that child for that child to develop a stutter where that same child in a different setting might not have developed the same stutter. I know I’m arguing semantics but they are important here. We do agree, however (I think at least), that harboring resentment is not anyway to move through life nor to overcome the stutter that you do have. Best