The system's rigid and hierarchical structure has been criticized for stifling creativity and innovation; described as intensely and "brutally" competitive, the system is often blamed for the high suicide rate in the country, particularly the growing rates among those aged 10–19. Various media outlets attribute the country's high suicide rate to the nationwide anxiety around the country's college entrance exams, which determine the trajectory of students' entire lives and careers. Former South Korean ''hagwon'' teacher Se-Woong Koo wrote that the South Korean education system amounts to child abuse and that it should be "reformed and restructured without delay". The system has also been criticized for producing an excess supply of university graduates creating an overeducated and underemployed labor force; in the first quarter of 2013 alone, nearly 3.3 million South Korean university graduates were jobless, leaving many graduates overqualified for jobs requiring less education. Further criticism has been stemmed for causing labor shortages in various skilled blue collar labor and vocational occupations, where many go unfilled as the negative social stigma associated with vocational careers and not having a university degree continues to remain deep-rooted in South Korean society.