[1] "Blacksmithing" didn't disappear, obviously, but it survives as an expert craft for luxury goods. That's sort of what's going to happen to "hacking" in the future, I suspect.
[2] Likewise, some of the best positions survived as "personal assistants" for executive staff too lazy to learn to type. Interestingly these positions are some of the first being destroyed by the OpenClaw nonsense.
The professional typist' role evolved - to serving through other ways, as you say - by become executive assistants. Much like a Bank Tellers' role also evolved.
And its not because they (executives) are too lazy to type. They actually need people to manage their calendar, monitor emails etc. Moreover, the personal computing revolution led to an expansion of firms that needed more of said people.
Could this be disrupted by things like OpenClaw? Maybe. Personally I doubt it. Trust is a huge element that LLMs have yet to overcome and may never over come. Its the same reason Apple pulled "Apple Intelligence". I know this place is full of doom and gloom, but I am not a SWE by trade so I can see the bigger picture and not get bogged down by the fact it might affect my income.
Moreover, work is more 'fun' with people around. So to you it may seem irrational to keep employed for that basis (call it Culture) but to others, and in particular the executive class - nope. People will start realising things like this once the hysteria dies down.
The "role" might have evolved, but the jobs disappeared. There are, what, maybe two or three orders of magnitude fewer "executive assistants" than there were typists in the 70's? I was making an argument about economics, not job classification.
Over time with the speed of technological development compounding on itself, the rate of change becoming much more acute, there's a debate to happen on the "what if this change happens over 5-10 years"? Can you imagine a world where in 10 years most well-paid office jobs are automated away, there's no generational change to re-educate and employ people, there would be loads of unemployable people who were highly-specialised to a world that ceased to exist, metaphorically overnight in the span of a human life.
Pushing this concern away with "it happened in history and we're fine" leaves a lot of room for catastrophising, at least a measured discussion about this scenario needs to be had, just in case it happens in a way that our historical past couldn't account for. No need to be a doomer, nor a luddite, to have the discussion: can we be in any way prepared for this case?