AI is good at the first 80% but terrible at the last 20% of producing good code. And you need to through that first 80% to really understand what the code is scaffolded to do, which writing it yourself will vastly improve. And typing speed has never been the bottleneck for coding.

Even worse, whole generation of devs are being trained to not care of learn about that last 20% because the AI does it """all""" for them. That last bit is an unknown unknown for the neo developer nee prompter.