Zero-risk bias is a cognitive bias that causes people to prefer avoiding risks, even when the potential reward outweighs the potential risk. This bias can lead to irrational decisions, as people may overestimate the potential risks and underestimate the potential rewards. It can also lead to an unwillingness to take
From Wikipedia
Zero-risk bias is a tendency to prefer the complete elimination of risk in a sub-part over alternatives with greater overall risk reduction. It often manifests in cases where decision makers address problems concerning health, safety, and the environment. Its effect on decision making has been observed in surveys presenting hypothetical scenarios.