Society is heavy weight ground for crime and society vices but if they government of countries can available jobs and academics for students and graduate society will produce better people. People steals because they have no option other than what training they grow with.
Maybe you are from a country with a high rate of unemployment, that is why you think employment can eradicate crime. Truly, crime would be reduced if jobs were available for the youths, but it cannot be eradicated. As of January 2025, the US unemployment rate stands at 4.0%, but the crime rate in that country is 374.4 per 100,000 people.
Nigeria's crime is not fueled by just unemployment. It has political, greed, religious and tribal undertones. One of the biggest causes of criminal activities is religious fanatism, and it has caused many deaths and destruction of properties.