Hi my very clever and articulate 5 year old son has recently just started to replace the s sound in words with a whistling "ssccchhh" sound. It seems to coincide with him putting on a baby voice. But the "sssccchhh" sound has started to come out in his normal speech.
We ask him to use his big boy voice when ever we hear the baby voice & have I spoken to him about the "sssccchhh" sound. But I don't want to keep correcting him as he is very sensitive & has gotten quite upset about it.
We are both M.S. CCC-SLPs and fell in love while studying for our degrees. Since then we have done everything together - graduated, worked, and started a family. We spend most of our time with our 3 cute girls and the rest making this site for you.