The problem is the questioner could find all the answers out, simply by buying a book, looking at MI's or going down to their main library and reading the relevant BS document for free. I like to think the person who I am doing the work for knows as much about the job as me. Then you get mutual understanding of what is involved. It is not necessarily that they will go away and work illegally. It is like speeding, it is entirely up to the driver if they decide to do so, but I would not stop a person from learning to drive just because they might speed. Its the same with a gun, having the knowledge or giving the knowledge about how to fire one is perhaps harmless, it is only when a nutter decides to kill that they become dangerous.
I can appreciate the point your making and to a certain degree I agree with you, but what if the person knows little about what they are doing but still decides to do it? Surely that is far more dangerous? As a young man I thought flying a glider looks easy, but when you learn what is really involved its a whole new game and you realise it isn't.