In my experience it's less that people don't grasp it and more that they have no interest in learning and hope to survive as parasites forever. I've worked with

In my experience it's less that people don't grasp it and more that they have no interest in learning and hope to survive as parasites forever. I've worked with people who will try to stop you from teaching them almost immediately and interrupt with some nonsense that amounts to "can you just do it for me, though?". A lot of the time this happens when the task is time-sensitive and they're likely afraid of missing a deadline by trying to figure something out themselves, but you'd think they would recognize the pattern after showing up with the same frantic plea enough times.