The global survey covered 108,926 internet-connected young adults (18–39 years) across 73 countries and territories.
Over two-thirds of respondents preferred a family arrangement involving marriage, showing continued interest in family life.
Financial security (81%) and stable employment and housing were identified as major factors influencing partnerships and parenthood decisions.
In India, women aged 18–39 years reported an ideal family size of 2.1 children, while the actual average among women aged 35–39 was 1.0 child.
The report highlighted that declining fertility is linked more to economic challenges, housing costs, employment insecurity and lack of support systems rather than reduced interest in parenthood.