User blog comment:Edrea/Everyone Turned Blind-Eye to Merlin's Power/@comment-5674726-20130715000327/@comment-5674726-20130716000552

More plot convenience.

What I can't figure out is why Arthur always had Merlin tagging along with him when he was going on hunting trips or patrols or other missions. He frequently said that Merlin was useless in combat and it's not as if he didn't have a full load with his tasks as manservant so why drag him along all the time, if not so the writers didn't have to keep coming up with ways of having Merlin tag along without being noticed.