edit: changed is => when
As indicated in a recent post on HN there is already a company working on creating an autonomous pizza truck that will prepare hot food in route to a location serving it hot at arrival. Coupled with autonomous vehicle technology, we will soon see the evaportion of labor jobs MUCH quicker than many expect. As we use our resources better, I find that elevating the bottom is important, while still allowing for capitalism and free markets to keep the top uncapped.
Artistic pursuits; as well as things machines can certainly do as well or better than humans, is not only anthropologically important but certainly skills we would want to retain if there were ever to be a failure of mechanization.
By coincidence proper heat treatment requires all of those too :) Depending on how deep you want to plunge.
It seems that they probably have similar risks, though glassblowing for the lab might require a broader domain knowledge.
The consequences for using a poorly-made Erlenmeyer flask are potentially devastating on a far larger scale than for a poorly-made knife.
the equipment is not expensive enough to prevent most apprentices in US/EU/CA to just go out on their own after a while. where as in lower income countries the apprentice is easier to keep for a much longer timeline.