In my view you are defining two types of handmade here. Dinner can be handmade of course, but from an evolutionary perspective this is necessarily true. I would put this into its own category given how fundamental it is. But aside from that, just from a basic perspective, dinner is very simple to make, and the ingredients are standardized by nature itself; that is, there cannot be any incompatibility between two foods. So the parts are extremely simple and the building process even simpler. And there are minimal safety concerns. Although from a quick search I found the following:

>CDC estimates 48 million people get sick, 128,000 are hospitalized, and 3,000 die from foodborne diseases each year in the United States.

I don't know what to conclude from this, but it doesn't matter anyway. The reason being that we cannot compare making dinner to making a blender. This is obvious from my evolutionary perspective given above but also from direct observation. The ingredients of a blender are much more specialized. Size matters, quality matters, and it all has to fit together. I'd compare it to a Linux based OS actually. Most people need someone to package all the utilities together (and provide support, but lets ignore that). Except hardware of course does not scale in this way. You need to repeat the process each time. The is the problem that factories solve: securing supply, putting it together, and all this at scale. In regards to the airplane example, the definition of handmade is vastly changed, or at least the type of handmade has changed. Now there are government regulators, extremely specific and expensive machines (some of which I assume are in house), highly skilled engineers and billions of dollars at work. The only reason we aren't using factories is because we can't (I'm taking your word for it, I don't know). Unless you are referring to smaller planes, which maybe don't have all this involved (I don't know anything about this either). But at the very least they have a few skilled engineers and a lot of tools. We can't use these engineers to make blenders and washing machines, it just cannot scale. There need to be billions of these things. Maybe a few thousand can afford this, but now we have lost our engineers to less important problems.

This said, you never directly suggested we do this at scale. Only that you would like if possible.