Key Social Norms Take-aways This study shows that addressing early and forced marriage in Niger requires shifting the broader social environment — particularly the norms among men that shape marital practices — rather than only focusing on girls’ empowerment or individual beliefs. While engaging men is crucial for changing norms, interventions must be designed carefully to ensure they do not reinforce male control over girls’ choices. Successful approaches will need to balance community-level norm change with strengthening girls’ agency and autonomy to create meaningful, lasting change.

Objectives This study examined how village-level social norms in rural Niger affect girls’ age at marriage and their involvement in choosing their marital partner, aiming to understand the connection between community expectations, individual choice, and early marriage practices.

Methods Researchers used survey data from 581 adolescent wife-husband pairs across 48 villages in Niger, collected during a family planning evaluation between 2016 and 2018. They measured individual attitudes and perceptions (injunctive norms) and village-level behaviors (descriptive norms) regarding the ideal age of marriage and women’s involvement in marital choice, applying multilevel regression models to analyze associations with marriage outcomes.

Results The study found that village-level norms — particularly men’s perceptions that the community supports girls’ marital choice — were strongly associated with girls marrying at older ages and having a say in whom they marry. In contrast, individual attitudes about marriage age (from either men or women) did not predict marriage outcomes. Notably, girls in villages where more women reported involvement in choosing their husband were also more likely to marry later and report having marital choice themselves.

Conclusions Community-level social norms, especially those held by men, play a key role in shaping both early marriage and girls’ autonomy over marital decisions. Programs that aim to delay marriage and strengthen girls’ agency need to target these collective norms rather than focusing solely on changing individual attitudes.