I spent almost an hour trying to explain to an Engineer how GDnT works and how and why the part was failing. I would think with all of the GDnT on the prints they would have a better understanding of it. (I know its not all engineers may be just a few that I work with)
Well if it makes anyone feel any better I am the go to guy at my work for all things GD&T. I am not an engineer but an ex machinist turned inspector. Since I got my certificate engineering comes to me.