We live in a fast-paced world of changing technology. A new phone becomes obsolete within six months, and people will adopt new technology. This time frame will continue to decrease. Everyone will have to follow a learning cycle where they can learn, unlearn and relearn.
Back in the days, people who were unable to read and write were called illiterate. With everyone being educated, this definition is changing in the developed countries and percolating amongst literate. There is a paradigm shift in the requirements of employers. Employers expect employees to transform and adapt themselves techniques quickly. Some methods will be out-of-date; thus, people have to unlearn them and learn to new and better methods. They have to keep relearning it till a change is needed.
Take my example; for instance, the subject accounting is often updated with new and better techniques of accounting. While studying accounting at university, we had to unlearn the methods to prepare a Balance Sheet, and Profit and Loss Sheet taught in Year 1 as new techniques were introduced. In Year 3, we had to learn new techniques. If we did not unlearn the old technique, we would have failed our exams.
To sum up, people who cannot follow this cycle of learning will be considered illiterate and slow. Increasingly, more people are attending universities at the later stage of their life. In this way, they keep updated, employable and develop skills of learning cycle which will be eventually required in all aspects of life.