Demography is destiny:
Japan Steadily Becoming a Land Of Few Children – washingtonpost.com
The number of children has declined for 27 consecutive years, a government report said over the weekend. Japan now has fewer children who are 14 or younger than at any time since 1908.
The proportion of children in the population fell to an all-time low of 13.5 percent. That number has been falling for 34 straight years and is the lowest among 31 major countries, according to the report. In the United States, children account for about 20 percent of the population.
European and Japanese non-immigrant populations have fallen well below replacement, and that means they’ll be substantially different in 20-30 years.