1966 pre-dates the full and equal legalisation of contraception in the US: https://en.wikipedia.org/wiki/Eisenstadt_v._Baird ; even now reproductive choice is still somewhat in jeopardy and requires constant activism.
Tokyo's current population is 37.5 million and the global population is above 7 billion, but the problems are so far not manifesting that badly in the West.
Tokyo's current population is 37.5 million and the global population is above 7 billion, but the problems are so far not manifesting that badly in the West.