Respectfully, I think your idea of the value the Japanese have is quite off; adult children living with their parents is something almost all east Asian nations see not as big of an issues compared to almost every western nation.
Japanese travels a lot, I'd say even more than your average American. They just travel inside the country (and why not? The best beaches and the best snow is in the south and north of their own country, and it's not like culture is lacking).
I think the original comment you replied to is quite off too, most raw answers you'll get by actually asking the Youngs in Japan is that they're simply too busy; the neither have time or stability to pursue children. Almost all young people flocking to big cities doesn't help this trend either
Japanese travels a lot, I'd say even more than your average American. They just travel inside the country (and why not? The best beaches and the best snow is in the south and north of their own country, and it's not like culture is lacking).
I think the original comment you replied to is quite off too, most raw answers you'll get by actually asking the Youngs in Japan is that they're simply too busy; the neither have time or stability to pursue children. Almost all young people flocking to big cities doesn't help this trend either