To evaluate the relative effectiveness of voluntary social distancing appeals versus mandated lockdowns in reducing population mobility during the COVID-19 pandemic, using India as a developing country case study.

This study analyzed daily mobility data from Google’s Community Mobility Reports across six location categories between February 16 and May 31, 2020. A geographic-level regression model was employed to isolate voluntary mobility changes during India’s 14-hour voluntary Janta Curfew prior to the mandatory nationwide lockdown. The model controlled for pandemic severity, health infrastructure, and socioeconomic factors.

Conservative estimates indicate that voluntary measures accounted for a substantial proportion of overall mobility declines, ranging from 27% to 71% depending on the location. The most pronounced voluntary reductions occurred in retail and recreational centers, parks, and transit stations.

Timely and targeted non-mandated appeals can achieve meaningful behavioral change, complementing formal restrictions. These findings offer critical guidance for health promotion policy, demonstrating that voluntary public compliance can be a viable, flexible strategy for pandemic management, particularly in resource-limited settings where strict mandates may cause severe socioeconomic strain.