Marriage rate decreased
Marry always is an important topic. The old-fashioned people very attention marriage, they don’t care how successful you are in the business or other things. In China, many young people don’t want to marry. It was a big problem that happens in China. For 2019, China’s single adult population exceeds 2.4 billion, and the divorce rate also continues to rise. Therefore, the birth population for China is declining. Interestingly what occurs this happens lets young people think in that way, did not want to marry. What are the consequences of this in China? Wrong or right, I don’t know.
Interesting general topic, but your research question needs to be more focused:
Since (what year?), marriage rates among young people in China have been declining. What are the economic and cultural consequences of this change?
You could also ask a question that relates to whether or not people are having children even if they are not getting married… is there any evidence for that?
Or you could see if there is a concern or fear that jobs will be taken by people who are immigrating to China. In other words, is there a decline in the workforce and will people from other countries fill that void?
Another question to consider is how does the current trend for not marrying (and perhaps not having children) relate to the “one child per household” law that was passed in the late 1970s?