When I got back into fly fishing, years after learning as a kid, I took a few free lessons from a man at a local fly shop. I have no idea if he was FFF certified or not, but he taught me a whole lot very quickly. He was great, and I know he was responsible for my renewed enthusiasm for the sport. Giving away lessons to promote the sport is not the same as giving away free caddys, nor does it lessen the value of the lesson.
Bill