You do know that they come to you because they know that you are the professionals. Many of them are completely clueless as to how pricing works for dev/design-work. Asking "how much do you charge?" is a perfectly reasonable question for someone understandably uninformed to ask.
You may be skilled at your trade, but from the sounds of it, many of you are absolutely horrible at dealing with customers who need a bit of guidance and direction with respects to the work they want to get done.
Imagine a curious older relative asking a physicist what light is and receiving "Well, it's sort of like one thing, but it's really not" as a response.