So you don't feel that this is giving him overinflated self-importance, confusion about his role, anything like that? Are any other children doing this?

My DS is not shy, nor has he had any behavior problems. He is well-liked, though I think sometimes the other kids are not sure what he is going on about. However, he actively dislikes preschool and it is a struggle to get him there in the morning, despite his teachers working to accommodate him.