This article addresses the growing trend of employers mandating return-to-office (RTO) work arrangements, using UK companies Tesco, Boots, and Barclays as examples. The author argues that RTO mandates are driven more by managerial presumption and psychological bias than by robust evidence of productivity gains. Key evidence presented includes research suggesting mandates do not improve company or employee performance, studies linking RTO policies to higher attrition rates — particularly among women, millennials, and senior talent — and Microsoft data indicating that 85% of leaders express low confidence in hybrid worker productivity. The article also references findings that two days per week in-office may represent a functional hybrid balance, while noting no consensus exists on the optimal number. The author attributes managerial resistance to remote work to Theory X assumptions and what Microsoft terms 'productivity paranoia,' compounded by the absence of meaningful productivity measurement frameworks in most organisations. The conclusion drawn is that without better measurement systems and clearer definitions of productivity, RTO mandates carry commercial and retention risks rather than demonstrable organisational benefits. Key insights: Research cited in the article suggests that mandated return-to-office policies do not demonstrably improve company or employee performance, and may increase attrition risk among women, millennials, and senior staff. Microsoft identified three specific scenarios where in-person work delivers clear benefits: onboarding new starters, initiating projects, and strengthening team cohesion — suggesting targeted rather than blanket in-office policies may be more effective. Many managers rely on proxy measures of productivity such as email traffic or desk time rather than outcome-based metrics, a pattern the article links to Theory X managerial assumptions and what Microsoft labels 'productivity paranoia.' Practical takeaways: Organisations that lack objective, outcome-based productivity measurement systems are more likely to default to presence-based proxies, which the article suggests do not accurately reflect performance in hybrid or remote contexts. The article highlights that blanket RTO mandates applied without contextual data analysis carry retention and commercial risks, with the evidence pointing toward context-specific hybrid arrangements as a more defensible approach.