Recipes need to be obtained. I learned to cook the foods I liked for simple lunches when I was a child. When I went off to college, I learned how to cook the other meals I liked from frequent calls home and from friends and books and much trial and error. Years of learning and practice. Societies have advanced quite well with food preparation being unnatural and requiring training and practice.
Literacy takes training, years of it.
Dumbing down language isn't enough. Sports, Dancing, and Other Recreation. Learning to ski or throw a ball take time. They aren't natural. Nor are many dance moves.