This question comes up very often on Reddit. Here's a good answer I read recently: https://www.reddit.com/r/explainlikeimfive/comments/6d22mv/eli5_why_do_5yearo

This question comes up very often on Reddit. Here's a good answer I read recently: https://www.reddit.com/r/explainlikeimfive/comments/6d22mv/eli5_why_do_5yearolds_and_under_like_to_watch_the/dhz7jzr/?utm_content=permalink&utm_medium=front&utm_source=reddit&utm_name=explainlikeimfive https://www.reddit.com/r/explainlikeimfive/comments/6d22mv/e... > Young children love repetition, whether it's watching a video or listening to song lyrics, because it's the best way for them to acquire and master new skills. In order to learn something well, children this age practice it until they get it right, hence the repeated watching.