About 5 to 10% of kids, according to [0] begin to stutter temporarly. My little one started to stutter when she was 3 and after a few days nearly stopped talking altogether because she rather did not speak than stutter, to see this hurt badly. Before that she was actively communicating and joking with us. We felt like we lost a deep connection to her feelings, her emotions, like we lost her. I called a speech therapists and they told me that kids can start to stutter as they develop their language skills and they only start therapy if the stuttering goes on for more than a few months. We had some hard weeks while trying to follow the tips in [1] but luckily it went away. Seeing that she decided not to talk anymore, the effect that stuttering had on her, opened my eyes on what it might mean for someone who suffers from stuttering. All the best for everyone whose affected!

[0] https://www.nidcd.nih.gov/health/stuttering#who

[1] https://www.psychologytoday.com/us/blog/going-beyond-intelli...