Have you ever noticed how some kids stretch the /s/ sound, making "sun" sound like "thun," when you listen to their adorable chatter? It's really typical, so if your child is going through this speech-related ordeal, they're not alone. Many children strive toward, at their own speed, mastering the /s/ sound. Because of its unique tongue placement and frequency in the English language, this sound—which is crucial for good communication—can be challenging to pronounce.