yes, hardships never stop people from have kids

In the time of famines and wars in China, people (my grandparents and great grandparents) tend to have more kids. In less hard time, people stop having kids. There are a lot of factors at play, poor time requires people to not put all their chip in one place, a lot of family labour division needs a bigger household, there are a lot of community involvement (it requires a whole village to raise a child).