No, people are missing what I'm saying. You're all using examples of when you say "do as mummy says" - that's just implying you're rights, which isn't a bad thing. However, why say "you should do as an adult says"? That's just telling them all adults are right.
Well it is quite difficult to figure out exactly what you are saying.
Your thread title leads most people to suppose you mean the "do as mummy says" situation, hence most of the posts on here are defending that stance. However you are now saying you are OK with this and, presumably with other responsible adults such as teachers taking this approach.
If I understand you correctly you object to someone telling a child to obey all adults. I am not sure I have heard that often without some qualification. Surely all parents teach their children about "stranger danger"