What measures can be put in place to prevent underage drinking in establishments?

The implementation of strict ID checks and staff training on how to recognize fake IDs is a crucial measure in preventing underage drinking in establishments. By requiring all patrons to present valid identification before purchasing alcohol, establishments can effectively verify the age of their customers. This practice not only ensures compliance with legal regulations but also fosters a responsible drinking environment.

Training staff to recognize fake IDs equips them with the necessary skills to discern legitimate identification from fraudulent ones. This vigilance is essential, as minors may attempt to use fake IDs to gain access to alcohol. Additionally, well-trained staff can confidently handle situations where ID checks reveal an underage patron, ensuring that the establishment remains a safe and lawful space.

The other choices do not contribute to preventing underage drinking. Ignoring ID checks undermines the establishment's responsibility to comply with the law, while encouraging group drinking and promoting alcohol beverages to minors directly contradicts the goal of reducing underage drinking. These practices could lead to severe legal repercussions for the establishment and endanger the health and safety of young individuals.