If you want AI-proof careers it seems risky to go into knowledge work at all. Robotics lag behind mere computation, so something where you do awkward work in places designed around human bodies seems a lot safer. Plumbing, landscaping or something like that perhaps.
This is a romantic and very appealing idea that flies in the face of reality. The market for skilled trade workers like plumbers, electricians, landscapers and so on is more or less in equilibrium, and the demand side of it is relatively inelastic. Dumping hundreds of millions of new workers into these trades will not increase demand sufficiently to let anyone earn a viable living from them.
There is nothing that can absorb millions of new workers. If AI destroys jobs to that degree pitchfork manufacturers will be the only ones left in business.
Where I live at least right now it is quite hard to find contractors for anything and many are close to retirement age and have a hard time finding replacements.