Answer:
unethical
1. if they are allowing individuals under the age of 21 in they need to have a stamp or a badge that has to be visable or they will be kicked out.
2 the individuals that are the age or above 21 should have a different badge that indicates that they are the age of or above 21 and must be visible or they will get kicked out.
3 if they are allowing underage individuals in they must have people watching them so they don't sneak alcoholic beverages.
Explanation: