I have twenty plus years left until retirement, but I don't think my skill depth is going to last that long in the changing society, so I will have to find other ways to make it through
You say it right. And I think that all the people should keep updated about evolving jobs nd working places. I guess that with the actual knowledge, nobody is going to last 20 years. An exception may be about successful surgeons, that may not need to adapt their surgery style to new technologies (as they are already successful) but still, they will suffer competition and technology can usually bring better results.
So, I guess, that your point is a healthy acknowledgement of where you are, where you are going to be and where you want to be in the coming working years.
I think most will have to pivot in some way. For me at the moment at least, pivoting is very hard mentally. I think that I can survive for the time being, but I am going to have to make sure I can take care of myself, sooner rather than later.