The Prime Minister of Japan has called for a consideration of the 'Single-Surname' system, a longstanding cultural norm in Japan that mandates married couples to adopt the same surname. This move could potentially allow future generations the option to retain their maiden name after marriage. While the decision has yet to be made, the announcement suggests a potential shift from traditional customs towards more progressiveness in family law.

In Japan, the issue of having the option to keep one's maiden name after marriage is a topic of great debate. Driven by cultural norms and legal values, the public opinion is split - some see it as a needed reform for gender equality, while others worry it may erode traditional family structures. The Prime Minister's initiative to review the system is seen as taking the lead in addressing this controversial issue.

In contrast to Japan's single-surname law, the U.S and EU countries typically allow married individuals to keep their birth surnames, adopt their spouse's, or use a hyphenated combination. This flexibility is viewed as a manifestation of personal choice and changing societal norms, promoting individual identity and gender equality.