The document discusses how household definitions used in surveys can impact results. It presents a case study from Tanzania that interviewed people about their living situations and compared results to the Demographic and Health Survey (DHS) definition. The study found the DHS definition underestimated household size and misrepresented certain groups. It analyzed how key indicators like sex ratio and poverty levels would differ under various definitions. The document concludes household realities are complex and surveys should allow flexible reporting of living arrangements rather than assume rigid boundaries.