Was there really a lot of fighting among Korean teenagers in the 1980s?

These days, it is said that only 2% of Korean teenagers get involved in physical fights. However, I heard that fighting was much more common in the 1980s. Is this true? If so, I wonder how common fights were back then. It is said that the youth culture in Korea during the 1980s was very different from today, especially in terms of school culture and relationships among friends. Was fighting seen as a way to resolve conflicts among friends or perhaps as a form of friendship during that time? If there are any individuals who spent their school years in Korea back then, could you share your experiences or memories from that time? I'm also curious about how it differed from today.