That is the name of the game. If it were fun and games, they wouldn't call it work. I have guided my entire adult life, and have seen anglers who's skill level was negative 100 on on a scale of one to ten. Some people don't only not learn, but try as hard as they can to get worse.
One time I had a lady fishing for silver salmon. The stream was loaded with salmon, and you could catch one on almost every cast with a spinning rod. She insisted on fly fishing. A skilled fly caster could cast far enough to present a fly to a salmon without spooking it and catch a salmon on almost every cast. An average angler could cast well enough to hook enough to keep their rod bent for most of the day. A beginner fly angler if they progressed well, would be able to hook a few and if they were quick learners may catch even more
After trying all morning to get this particular anglers casting skill to the point she could catch a couple fish, I realized she was never going to catch a silver salmon on a fly rod in that river. It was getting close to lunch and she was getting very frustrated, so I suggested she take a break, from fly casting, grab a spinning rod, and catch a fresh salmon for shore lunch. She looked at me holding a spinning rod, like I was the devil with a pitchfork. She told me she would never cheat and use such an sporting method of fishing. I wanted to tell her, that with her skill level, dynamite thrown in an aquarium wouldn't be considered cheating. She couldn't cast a fly 6 feet with a nine foot fly rod but held my tongue and tried to figure a way to survive the afternoon. I tried every spot on the river, from the shore, drifting the boat, the boat anchored, or me walking the boat slowly through a hole. I tried every size, color, and type of fly I had. I did my best to teach her to cast, but to avail. At the end of the day she was not happy, it was my fault she didn't catch any salmon. All the other guides clients landed multiple silvers, and most of them on fly rods. She was sure I was the worst guide in camp, maybe the whole state.
For the record I didn't fish that day. I had to be careful not to even let the fly touch the water while holding on to a rod in fear that a salmon would hit the fly while dangling in the water, knowing I would be accused of sore mouthing all of the fish depriving her of an opportunity to land her very own silver salmon. I did offer to hook a salmon for her, and let her land it on her rod, but I got the devil with the pitchfork stare again, and decided to exercise my constitutional right to remain silent.
I got up the next morning welcomed the new guest while they unloaded from the plane, smiled and said lets go catch some salmon. Guiding is not easy, it is lots of work, but the good days make it seem like a vacation, and the bad days at least make for good stories.