To turn your statement around, are you saying that no one should bother learning first aid unless they are planning on becoming a medical professional?
I am trying to say there is a distinction between those who are trained professionals and those who have basic knowledge. I am getting the feeling people are taking this issue personally. If you want to become a trained professional, please do so. As for me, I have paid my dues and consider myself one.
Well, it is your camp that is equating "learning programming" with "becoming a programmer."
I don't know why you should feel threatened or defensive about the fact that a lot of people want to understand your basic skill set. I don't know many mechanical engineers who discourage people from learning to fix their own cars.