Zheng ChenResearch Paper Topic/QuestionJapanese marriageSince 1973, Japan’s NHK has conducted a national survey every five years. NHK's latest survey on the potential of Japanese marriages shows that only 27% of people think that “marriage is a matter of course”, while 68% of those who answered, “may not get married”; 60% of them think that “even if they get married, You can have no children". As much as 70% of those who agree not to marry, a record high in 25 years. The institute will also focus on Japan every five years. According to the latest 2015 report, the average age of first marriage in Japan is about 30 for men and 29 for women, and the average time of love and relationship is about 4 years. what is the reason?