Thing is, that is common for all "true" Asian cultures. Maybe, for all non-Abrahamic cultures even. Before demographic transition, people of all countries multi

Thing is, that is common for all "true" Asian cultures. Maybe, for all non-Abrahamic cultures even. Before demographic transition, people of all countries multiplied because they had no way around it (no contraception) and because they had to (kids used as working hands from early age and funded their parents in the old age). When demographic transition happened, in Abrahamic cultures, people still sort-of continued to multiply because it was the God's will to multiply and procreate, and fill the Earth, they saw it as sort of a sin to avoid that duty. To Chinese or Japanese, God said nothing, so they simply stopped having kids once they could stop and once they had nothing pressing them to. Only difference in our (Western) perception of China and Japan in this sense is that we see this process in China positively and Japan, negatively... That's of course cynical but true.