Children's policy of China

I read this article about a stateless girl.

A twenty-year-old girl wants to study but she cannot go to school because of China’s one-child policy. She cannot get the nationality, but this policy would be reconsidered so her family tries to make people in the same situation positive and to recognize her as a legal second child.
 

In China, one-child-policy appeared more than 30 years ago due to restrain increasing the number of people, but it is reviewed because supporting elderly people is hard for young people. I think the girl of this article is very passionate for everything and I wanted to support her and her family. Also, I think there are many other people who cannot get the nationality because of the policy. Without identity, people cannot get the public support and also it is difficult to work same as the people who have nationality. This policy is just an idea to make better only present situation. However, think of future, I think this policy is little hard to accept because few young people should support many elderlies after a few decades of years.
 

Here are two questions for you.

1.    What do you think about one-child-policy of China?

2.    Think about Japan, these days, declining the number of children is a problem. Can you come up ideas to solve it?