Right, this would be a preference change for nurses whose attention is more valuable and who don’t burn out (decrease quality of care over time.) Same for more attentive drivers. This is consistent with how the perspective changed of jobs we consider compatible with shorter workweeks.

In addition to automation for jobs where attention and reason doesn’t contribute to success (which is how you’re describing nursing and driving; I of course disagree), there will still be a market for hourly pay and people who really enjoy and are suited to overtime, as well as other factors. The transition is complex.

It's not about "where attention and reason doesn't contribute to success", it's about the simple reality that if someone commits to having something staffed "5 days a week" or "24/7", then either their costs have risen 20% or the salaries have to fall 20% when the working shifts fall by 20%. That might be acceptable to some business and staff (part time employment is already a thing) but magical productivity improvements aren't always as achievable as certain knowledge work fields. More attentive drivers don't go 20% faster or have 20% more space in their lorries, and for that matter I'm extremely sceptical people would pay 20% more attention to the roads working a four day week than a five day one.

Well, you are right that if we continue to want butts-in-seats commitments without thinking about what we are looking to get from them, then nothing will change.