I think there's also a cultural element here that dovetails with the herbivore-man movement. It seems like young adults in Japan are getting less value out of being social with each other, and that leads to less concern for family and starting households. This creates a persistent nihilism among some of these young men, who account for over 2/3rd of the suicides, and they seem to be checking out of society. Some, unfortunately, all the way. The tremendous pressure to achieve coupled with decreasing levels of appreciation (less value for traditional Japanese household, etc) for that achievement, generally, is tough on everyone involved.