The learning I talked about is structured learning (which was the intent of dvija system).
As I wrote, when a labor is in demand, it is treated as a service. When not in demand it becomes cheap labor. Plumbing, electrician, barbers, vettiyans, drivers are services. They are services in demand. But let's say due to technology development plumbing becomes a simple stuff with little or no learning at all, something that anybody can do, if they just spend their time. Then it becomes cheap labor. Nothing to learn or anybody can learn quick. It just requires a human body with little mind to co-ordinate it.
There are umpteen number of un-skilled labor jobs (like carrying loads, cleaning etc). Any service can become cheap labor. Many services of the past have become cheap labor. That's why we see so many kshatriyas becoming zudras in Indian history.
For eg. look at BPO services. With more automation, they become too simple to be done without much learning and fall into cheap labor. Look at all the clerical services. With more computing, they become too simple to be done without much learning (or the skill level required goes down considerably).
Even services like that of doctor can become a cheap labor with technological advancement. Let's say we have a machine in which we send humans into and it finds everything about that human, then the first level doctors (MBBS) would become cheap labor. Anyone who can operate the machine is enough. We will need only specialists who can do surgery or concentrate on specific organs..
Anyone can do plumbing?
try it and then get back to me on this.
All levels of jobs need skills that need to be acquired and learnt.
The cobbler I know who repairs my shoes..stitches so perfectly..I told him that he has the skill of a surgeon.
He was happy when I told him that cos it takes a lot of perfected skill to stitch a shoe or a human body.
There is nothing really great about reading anything from any books and even earning a degree cos very few of us are inventors or have discovered something new.
All I can say is majority of us are just regurgitating what others have written or discovered.
If you ask me if I am educated..my true honest answer would be NO..I have not discovered anything that made a change to the world..anyone can go to college..anyone can just copy and paste information from books into their mind and claim to be Intellectuals.
What is that which upon knowing we know everything?
Are we even near that stage yet?
So its entirely wrong to say cheap labour requires little mind and just a functioning human body to do the job.
I guess then next time when anyone needs to do plumbing..dont call the plumber...do it themselves..after all if a so called little mind can do it..I am sure a rocket scientist too can do it.
We humans should learn to have more value for every level of society.