The claim
選択的夫婦別姓が実現すると戸籍制度が崩壊する?
Original review summary
The review says the claim is false: introducing optional separate surnames would not change the family register’s function of officially recording and certifying nationality and family relationships. It cites government explanations and past justice ministers who said the register’s function and importance would remain unchanged.[S1]
Additional context
The review describes the family register as recording and certifying Japanese citizens’ nationality and family relationships. [S1]
On April 30, 2025, the Constitutional Democratic Party submitted a bill that would let couples choose between a shared surname and keeping their premarital surnames; it proposed deciding the children’s surname at marriage. [S1]
Research date:
Sources and attribution
- [S1] 日本ファクトチェックセンター(JFC) original review
Original review · Retrieved October 16, 2026