I wasn't clear. If this guy loses this job to automation, you have to assume there won't be a similar job at the next store, either. Automation via robots will essentially eliminate an entire class of jobs based on physical labor and relatively simple mental skills. Giving them unemployment is a limited form of guaranteed income (in terms of amount and duration), but if your 10 year horizon is likely there will be many millions of people for whom there are no jobs ever needing to be filled by humans. What then?
Economics and history would say that for every job that gets "destroyed" a new one(or more) gets created, it just may not be a job of the same type. Economics isn't a zero-sum game. Otherwise we would have been in deep trouble 60 years as Farm Mechanisation started to fully set in here in the United States. Keep in mind, many of the largest industries in the United States today didn't even exist in 1950. More to follow.
Instead of a worker society with a labor class we'll be moving toward a large subsistence class dependent on government and a masters class based on mercantilism. If you want to go further, I don't foresee "Big Brother" overtaking society, but "Big Boss" more likely will assume the dominant and determining position for allocating roles and living standards. We never faced this problem before because the economy was growing and people were continually being incorporated into new activities that were constantly being created. People won't be needed nearly as much in this Bright and Shiny New World.
You're confused, mechanization and automation only addresses
the marketplace of things and at that, only certain aspects of it(albeit, more and more of it). Mechanization and automation doesn't address
the marketplace of ideas, or even many/most aspects of science, and a number of other fields.
Yes, unskilled labor is becoming more and more a thing of the past, and automation and/or technology (as the case may be) is even taking a substantial bite out of a lot of skilled labor that has previously been needed. However,
that doesn't mean that there are no new markets to be explored or even created. In particular, when discussing the marketplace of ideas, the options are almost quite literally, infinite, the only limitation being the technical capability of being able to present the vision being imagined.
I think that "guaranteed income" will become a reality because our entire economy is based on consumerism (not production). How much of what is sold in the US today is actually made here? But everything that is sold here is sold here. That means the protected class will be a merchant class, since they have to pay their workers who sell things (assuming they are needed, which is also doubtful).
I will agree(and have said as much already), that we are moving towards an economy where some kind of baseline standard of living is going to become a virtual guarantee as "the expense" of providing it becomes increasingly trivial. That expense however, is non-trivial as it stands today.
Since we already are a society with an unemployed class who still buy things, the ratio of buyers to sellers is greater than 1:1. If there are fewer workers in the future that ratio will become increasingly skewed. No matter how you want to look at it, the question that keeps coming up and has to be answered is how will people be able to afford to buy things as more and more of us have no viable income source based on our labor.
Previously a large part of that "unemployed class" were called "children." Just saying... That aside, I still don't hold to the "there will no work for humans to do" paradigm many of you seem fixated on. There will eventually be only a small percentage of the population involved in agriculture, industrial production, and a number of other industries(like teaching) that have traditionally employed most of the population at different points in time.
To put this is in historical perspective:
It's like saying that moving to domesticated herds of livestock and agrarian living with domesticated crops was going to lead to large scale community unemployment because most of the villagers would no longer be spending most of their day out hunting or scavenging for berries, roots, and other edibles across the countryside.
Instead they started making pottery, jewelry, more sophisticated tools and weapons(for hunting and killing other people alike; huh, I guess domesticated livestock didn't immediately do away with hunting for food), and a number of other things as well when the skill and capabilities of the farmers and livestock keepers increased.
It's like saying mechanization of farms starting in the 19th Century was going to result in large scale permanent unemployment of farmers who were no longer to perform the work. Wait, they changed professions and undertook different work, a lot of which happened to involve industrialization. The railroads did away with work for a large number of teamsters and stage coach drivers as the railroad could more safely, more quickly, and more reliably traverse much longer distances, in much less time, in more comfort(in the case of passengers). Somehow they didn't seem to remain permanently unemployed.
The advent of the automobile, and eventually the heavy truck once again further displaced more teamsters, more carriage drivers, as well as a number of blacksmiths, leatherworkers, and a few other trades as well. Seems those jobs were raplaced by something else. (In the case of the teamsters, it just meant they want from driving a wagon, to driving a truck instead, but still fewer of them were needed)
The advent of wide scale adoption of forklifts, pallets, and containerized cargo starting the the 1940's and 1950's again displaced a lot of workers on loading docks and shipyards across the country and around the world. It seems a lot of those workers found work elsewhere. Of course, this also meant more trucks could move more freight in less time, start adding in more powerful engines and increasingly larger trucks, and in theory you'd end up with fewer drivers, but I guess they lucked out that cargo volumes just kept increasing, even as roadways also kept improving allowing them to also cover more ground in less time as well.
It isn't until you hit the 1960's that the rate of change, and types of changes start to accelerate and starts to present problems for mostly "unskilled labor," it won't be until the 1980's that "skilled labor" starts getting pinched as well, with nearly everybody coming under the proverbial gun as of about 15 years ago.
Yes, entirely unskilled labor is largely a thing of the past, and becoming more and more a thing for the history books. Although I'd put a number of footnotes on a number of jobs that technically qualify as "unskilled" which are anything but. They may not need a college education, or even a high school diploma if we're being honest, but they're specialized skill sets all the same that take a significant amount of "hands on" time under supervision to develop.
"Skilled labor" is running into issues where many job fields, some of which have been around for centuries, have discovered that technology can do their jobs for them and essentially does away with most of their job, because most of their job yields easily to automated data processing/entry techniques available today. But it isn't even the centuries old trades that are finding problems, there are much newer jobs that are seeing their field practically disappear before it even really had a chance to become properly established.
Which is where I'm sure a lot of people are concluding "there must be no work to be done" they see their industry/field disappear, they look into another field that looks promising, and by the time they can enter that field, it has either been saturated with available (skilled) workers, or technology just gave the field a whammy resulting in fewer technicians being able to do more work(less need, leading to an oversupply of labor in the field), or their particular specialty no longer being needed.
What's happening right now is something that hasn't really been seen before so nobody really has any particular "skill" at being able to predict which fields automation and technology is or is not going to adversely impact next(in terms of their respective labor markets, not their underlying financials), and which ones are about to be hit with an oversupply or workers. ("No work available") But they're eventually going to a basic "feel" for what is happening in this new and strange constantly shifting technology influenced labor market.
What can be said, and Economics will back this up, even (recent) history will bear this out. Is that even "non-productive" persons left to their own devices ultimately can become an industry unto itself. Football anyone? Baseball? Basketball? Tennis? Golf? Skateboarding? Or even the large and growing larger number of professional "E-sports" people out there?
Or for a more traditional option: Harry Potter, Divergence, and Hunger Games. All three titles recently spawned franchises that made their respective creators very wealthy.
You move into a market where people are no longer involved in producing things, then people will direct their attention and efforts elsewhere, most will probably go for something they enjoy.
For some that will be creating new things and being inventive in the pursuit of new/different ways of doing things.
Others will pursue exotic ideas and/or fantastic stories, which others will consume in their own free time.
While many others will try to demonstrate their mettle through competition with others, whatever form that competition may take. So long as others are interested in participating vicariously and third parties can use it to their (economic) advantage, economic activity will result.
Yes, plenty of other people will be content to just do their own thing, with the less attention directed on them, the better in their view. Many people will be utterly unremarkable, but most people, even in their course of "doing their own thing" are going to generate something of worth to others in process, even if its worthless to you or me. Should they discover that "their thing" has value to others, then you have economic activity, however much or little it may be.
In some respects, you're kind of seeing that in play already with social media, as vapid as a lot of it may be.