The difference may be in the fact that they can sit down and talk to him properly, in a situation where he is not being flooded with information from a few varied sources which in some cases may be contradicting other advice, leading to his confusion. As pointed out before, he has possibly been told to use sticky tape to help shed, which would be a direct contradiction to what the rest of us were saying. To a child who has little experience, it can be extremely confusing, and he'd not know which person to believe.
I haven't lectured you yet. And I have a very good idea about the wellbeing of children, I have two of my own. And I'd hate to have them ask for advice and be belittled or told they were hurting the thing they love simply because they don't know which person to listen to.