The people reaping AI's benefits today generally developed their skills as juniors through old-fashioned struggling in the pre-ChatGPT era -- actually reading docs and articles, trial and error, puzzling over mysterious bugs, and generally doing lots of mental lifting.
How will skill building happen when LLMs and coding harnesses seemingly provide all the answers at one's fingertips?
That's a great question. I don't know what the future will be like, but looking into my crystal ball, I'm not seeing much hand-generated code. Very little (or no) human code review.
Having the taste and business sense to develop the right thing will be important. If it stops working, ask the AI to fix it.
How will people learn to ride horses, when everyone drives a car? They generally won't, because that is now obsolete.