Unitron
I don't see why you can't train AI to do these tasks. If you can train a human to do something you can train an AI to do it as well.
Volition is not necessarily required and pseudo-volition can be trained.
GPT-4 has already shown sparks of AGI. It can solve complex problems with high accuracy. AGI is inevitable and will arrive soon, most likely within the next 3 years.
And those jobs you've listed can be replaced by AI, the only limiting factor at this point is the lack of a physical body. Though, massages will still be performed by humans as some people would prefer that, but others don't care and would likely prefer AI over a human. So AI will still be deployed to act as a massage therapist.
This is a poor comparison. AI itself does the coding. GPT-4 can already write code from scratch with high accuracy. At this stage, it still needs a person to review it, but since AI is growing exponentially and can learn how to review code, this will definitely change soon.
And no, this isn't limited to simple coding problems. GPT-4 has been shown to be able to solve complex problems. We're still in the very early stages of AI and it can already do at least 50% of the work by itself, and that's a low estimate.
And the other examples are also poor. AI today can already compose unique music.