I never found teaching to be an exceptionally difficult task. The vast majority of people don't want to teach young children, because it entails a great deal of stamina, patience, and passion. These are far easier to cultivate than the logical and analytic mind which engineering typically requires.
And your cooking example is so far off base I don't even know how to respond to it. Cooking at an average TGI Fridays requires you to follow a set of prescriptive steps, follow the recipe... and that's it. Unless you're talking about working at a Michelin star restaurant, it's a rote job.
The original quote was: "the vast majority of people can't code, and when they try to learn don't get beyond hello world."
That you chose to cut short the original sentence is quite interesting. Are you sure you can say that it's hard to learn in the fields you mentioned?
The vast majority of people can't fix their car engine, teach a classroom of kids or cook in a restaurant. Doesn't stop those professions from being 5 figure jobs.