College and university study give student theoretical knowledge in specialized courses which help them to achive their goals in their field and prepare them for their future careers. Most of job ask for cerificate or specialisation firstly .For example doctors needs to study for many years because the medicine´s field requires from each doctors to have a graduation and specialization in the field that they have chosen otherwise they not be able of being doctors and work in the medical sector.As well all doctors must have a specialization from the universities to solve health issues so people´s life are in their hands.In addition,employer often requires a high degree for education to apply for job.That is why students study in different universitiies and work hard to have a certificate and look for job opportunities.