AncientGlory comments

I know a lot of Japanese women who live overseas having married a foreigner. I know far, far fewer Japanese men who live overseas. They miss small things, but overall seem to relish the lifestyles they have. I know many who live in Australia, and the work/life balance they have is the number one reason for their happiness there. They have quite strong Japanese expat groups as well due to the sheer number of girls there.

Most of my Japanese mates who are living in Australia, whether male or female do not want to go back due to the reason you mentioned. However, they struggle to get a permanent visa to stay due to their lack of English skills. In my opinion the main reason more women stay permanently than men is because women get married to Australian men and get spouse visas. I know many Japanese nationals who are living in Australia, but only three of them have permanent skilled visas. The rest, unless they get married to an Australian or get an employer to sponsor them, have to go back eventually.