I'm not sure where you're based, but having friends who are tradies most of the procurement and service infrastructure isn't owned by them at all.
Putting in a new kitchen or rewiring a house isn't beyond the physical abilities of most people and their customers tend to be the same middle class knowledge workers which AI is expecting to cannibalize.
As to your point about the knowledge being freely available; just as it's easier to ask an LLM about software questions, the same is true for other fields. It might not be accurate, but it doesn't really need to be - it just needs to lower the barrier for people to try.
Basically what I'm saying is that I absolutely expect secondary side effects for the trades if it has a big impact on knowledge workers as well.
Putting in a new kitchen or rewiring a house isn't beyond the physical abilities of most people and their customers tend to be the same middle class knowledge workers which AI is expecting to cannibalize.
As to your point about the knowledge being freely available; just as it's easier to ask an LLM about software questions, the same is true for other fields. It might not be accurate, but it doesn't really need to be - it just needs to lower the barrier for people to try.
Basically what I'm saying is that I absolutely expect secondary side effects for the trades if it has a big impact on knowledge workers as well.