What challenges face japanese society today?

I think one about the significant issues that Japan confronts these days is not overpopulation. The Japanese populace has been declining over the previous decade or somewhere in the vicinity. The issue is not the quantity of individuals but rather the make-up of that populace. 
The rate of Japanese individuals resigning or drawing near to retirement age has been expanding for quite a long time. Nowadays, there are more "old" individuals in Japan than there are "youthful" individuals. Japanese ladies are holding up longer to get hitched and couples simply are having the same number of youngsters as they did decades before.

This has put a tremendous strain on the Social Welfare framework on the grounds that there are essentially insufficient Japanese youngsters paying annuity premiums, charges or whatever to take care of the wellbeing expense and benefits advantages of every one of the individuals who either as of now have or will in the blink of an eye be resigning.

Western Port, commonly but unofficially known as Western Port Bay, is a large tidal bay in southern Victoria, Australia, opening into Bass Strait. It is the second largest bay in the state. Geographically, it is dominated by the two large islands; French Island and Phillip Island. Contrary to its name, it lies to the east of the larger Port Phillip, and is separated from it by the Mornington Peninsula. It is visited by Australian fur seals, whales and dolphins, as well as many migratory waders and seabirds. It is listed under the Ramsar Convention as a wetland of international significance.[1]

The area around the bay and the two main islands were originally part of the Boonwurrung nation's territory prior to European settlement. Western Port was first seen by Europeans in 1798 when an exploration crew in a whaleboat led by George Bass, journeyed south from Sydney to explore Australia's south eastern coastline. Due in most part to a lack of food, the expedition was halted, spending two weeks in Western Port before returning to Sydney. As it was the most westerly charted point at the time, it was named Western Port; however, it actually lies in the eastern half of Victoria and to the east of the larger Port Phillip and Greater Melbourne.