Your child is small, but already has a full head! Their character and psychology will evolve with the different stages that will make them grow up. Changes in their behavior and personality are completely normal. Famisy has some practical advice on how to manage these developmental stages on a daily basis.
The school is in the next town; his friend lives on the other side of town, the judo club is several blocks away. You can’t accompany him every time. And why not encourage him to take public transport?