Availability of education and literacy rate of a nation represents its contribution in the development of a country. The number of literate and educated people helps in building a nation better then the illiterate ones. They understand the complexity of the matters and also come up with the solutions of the problems instead of creating of problems. Disadvantages of illiteracy can be many in general but here are the few prominent and most hurting one
1. Crime Rate
2. Low Health
3. Loss of productivity
It's been observed that crimes committed by illiterate ones are more in number as compared to the literate ones. Because uneducated people have no skill in their hand nor they have education to earn money. So it seems easy to them to commit a crime because it's the easiest way to earn money. So illiteracy gives birth to crime.
Low Health Issues
As illiterate people are unaware of the hygienic factors and personal hygiene matters so they are often caught up by different diseases. Their self carelessness results in low health which leads to the major complications later on. It might be disadvantage in some cases.
Loss of Productivity, Resources and Time
As these illiterate people some times does not understand the value of time so they waste their useful time in time wasting activities instead of utilizing some where else where this time could yield some results. Also the illiterate people utilize more number of country's resources then literate one. So which cause them burden on Government's shoulder.
So every country whether its developed, underdeveloped or developing country try to increase the number of educated people in its nation by making education free and motivating people to come for education instead of heading some where else. From child education program to Adult learning program Government tries to put their all the efforts to increase the literacy rate of its country. To make their citizen productive and skilled for the betterment of their country.
Almost everything would be a disadvantage if a person is illiterate.
A person who is illiterate can't read, write, of course hasn't been to a school, hasn't received education, can't learn the mannerism an educational institute provides, can't have the ability to think like cultured people, can't have effective decision making ability where he/she can weigh the pros and cons of a situation etc.
In today's world, its very important to receive education and be able to handle your life properly through your knowledge and understanding. There are people who have a certain sort of skill but due to the lack of any education, they don't get a chance to improve upon it or enhance it. Take the example of a person who loves to draw but hasn't been to a professional art institute.He would still be drawing but would never be aware of the possibilities that he could have explores only if he was literate. He would never know how an artist can publicize his work, what other mediums he can use besides oil, paint etc.
If you are literate then you can even help your country and think of more productive ways to help yourself, your career, family, country and environment in general.