Which is a requirement for bartenders regarding customer ID checks?

Checking IDs for anyone who appears younger than 30 is a crucial practice for bartenders, as it aligns with legal responsibilities to prevent underage drinking. Many jurisdictions have laws that mandate age verification when serving alcohol to ensure that individuals consuming alcoholic beverages are of legal drinking age, which is typically 21 in the United States. This practice helps bartenders avoid potential legal repercussions and fines associated with serving alcohol to minors.

By implementing a policy of checking IDs for customers who look younger than a specified age—often 30 as a guideline—bartenders exercise caution to ensure compliance with these laws. It is a proactive measure that protects both the establishment and the bartender. This approach demonstrates professional responsibility and commitment to promoting a safe drinking environment.

The other options do not align with these legal and ethical requirements. They suggest checking IDs under conditions that could lead to significant oversight or misjudgment, potentially exposing bartenders and establishments to risks associated with illegal serving practices.