This person is telling OP to talk very carefully and substitute words when they can. Substituting words is exactly what we ARENT supposed to do. So I’m going to stick with what I said. Continue to speak as you normally do, and teach the child people speak differently and that’s okay. This person is also trying to tell OP that you can “catch” a stutter as if it’s a cold or flu. No one should be encouraging any of this. It’s unhealthy.