When the system has poor incentives to guide young people to be productive and engaged in the society, even after they have been integrally formed well in their homes they can lose it all as they switch into the survival mode of the streets.
Countries with lowest crime rates have the best job security as well. In Tanzania, many individuals currently in correctional facilities (prisons) might not be there if meaningful employment opportunities had been available. It is a big problem to accept our kind of frustrating joblessness as a social dynamic, even among those who are educated.