if they knew he was his son i think naruto would of been respected by everyone in the leaf village and there would be no point of the manga i think thats what makes the manga so great or the akatsuki could of been in the very first chapter if it was different
understandable but what about now when everyone already respects him. He's a hero in a his own right now. this would just add on to how great he is. His comrades would be blown away