Technology vs some of the employees

With   many innovations in our days,many employees sees themselves in the edge to lose their jobs. Take for example the following industry.

Motor industry

The first built car went through many hands till the final product. Today lots of work is done by robots, you only have to control this machine(robot). The work that could have been done maybe by ten employee today is done by robot, which is a great news in our side of technology but are those employees loosing their jobs happy too, I just don't think so.

So what are some of the ways to prevent this

The employees should learn to educate themselves. I clearly understand that not every one the expect when it comes to technology, but just to update yourself about what is coming in technology could not be the difficult task.Also instead of building the robot that is controlled by one person, why not building the one that at least can controlled at least by ten employees to prevent this jobs loss which the unemployment rate.

When do we innovate robot that will make the gold digging convenient, just asking but I think whenever this happen we should bear this points in our minds.