Perhaps a overhaul of the political situation is best for Japan, consider the LDP has been in power for over 50? years. The opposition only hold power less than a year.
Some say the Jap has the perfect welfare system as well, but it need the overhaul which other welfare states like the UK and Australia have underwent, in order to stay relevant.
But one of the fun things Japanese youth can do is to take working holidays abroad and experience life outside the homogenous society.
There are Jap cafes here with noticeboards advertising accomodation, courses and work. Everything is so organised. Sometimes, I find Singapore not as enlightened.
It is also a plus point that the older workers can still find work in Japan.
I think societies change over time, these days in Australia, you see more Asian models in advertisements and people are learning Mandarin, some are still learning Japanese.