Japanese citizens will all have the same family name in 500 years’ time unless married couples are permitted to use separate surnames, a new study has suggested as part of a campaign to update a civil code dating back to the late 1800s.
The study, led by Hiroshi Yoshida, a professor of economy at Tohoku University, projected that if Japan continues to insist that couples select a single surname, every single Japanese person will be known as “Sato-san” by 2531.
