Most people go to school believing that they will get a job after schooling. In most developing country, the rate of unemployment keep increasing every year as graduate are produced every year to the labor market with a decline in rate of job opportunity. Using Nigeria as a case study, over 600,000 graduates are produced every year to the labour market with no job opportunity. This make the rate of unemployment increase every year.
This is a wrong understanding, education does not guarantee someone in finding a job, but actually education is the first step for someone to understand knowledge, and because education people are led to be better prepared in living real life.
CONCLUSION
School gives certificate but doesn't guarantee a job. Education never fails, it's gives knowledge and skills. This knowledge and skills acquired through it brings breakthrough on the long run. Therefore, graduate should think beyond getting a job after schooling but plan on how to utilize the knowledge and skills acquired through their education to create jobs for themselves and others.
The actual function of education is exactly what you conclude, knowledge and skills will be shaped by formal education which we often call school, while employment is largely determined by a person's skills in making choices and being able to take advantage of existing opportunities.