Literacy: Is it truly necessary?

The letters are easy, yet read the names and words and see that their pronunciation and usage are anything but easy

Many of us schooled in India, perhaps even elsewhere in the world have been told that a good percentage of the population of India is still illiterate. They are literally unable to 'write'. Most of us (at least within the groups I have spoken to) have been taught that the "lack of schools" or the "lack of primary education" is the primary cause of illiteracy.

Nothing could be further from the truth. Indian systems of writing were extremely well developed and evolved. Evidence of a 7th Century CE carving here, shows the "engineered" Grantha script - ('Grantha' literally means script, and is a phonetic script that can ideally be used to represent any language.)  Those who made these carvings that remain today are unlikely to be royalty or even priestly folk suggesting that language was available to artisans and craftsman. Further written scripts were to be taught after the fundamentals of speaking a language was taught.