It's common for German students to work or get married while they're still in school. The time involved in pursuing academic studies is long and difficult to get around. Also, with the ever-increasing unemployment rate in West Germany, students are in no rush to graduate. After all, studying doesn't cost anything.
德國學生又常是學業、工作、婚姻及享受生活一起來，修業時間長就在所難免；加上近年來西德失業率頻頻升高，念書反正不花錢，出了校門又怕找不到工作，因此不急著畢業的老學生特別多。