Alcohol is a substance that can cause harm to individuals, especially when consumed in excess. The National Institute on Alcohol Abuse and Alcoholism (NIAAA) states that the best way to avoid alcohol-related problems is to avoid drinking alcohol altogether [2]. However, there are some exceptions to this rule.

One exception is when alcohol is used for medical purposes. According to Drug Patent Watch, there are various medications that contain alcohol, such as cough syrups and mouthwashes [1]. Additionally, some medical procedures may require the use of alcohol as an antiseptic.

Another exception is religious or cultural practices. For example, some religious ceremonies involve the consumption of alcohol. However, it is important to note that even in these situations, excessive alcohol consumption can still be harmful.

Furthermore, the legal drinking age in the United States is 21 years old, as established by the National Minimum Drinking Age Act of 1984 [3]. However, there are some states that allow minors to consume alcohol in certain situations, such as for religious purposes or with parental consent.

In conclusion, while the NIAAA recommends avoiding alcohol consumption altogether, there are some exceptions to this rule, such as for medical purposes or religious practices. However, it is important to consume alcohol in moderation and to follow all legal guidelines and regulations.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ALCOHOL
[2] https://www.niaaa.nih.gov/alcohols-effects-health/alcohol-policy
[3] https://alcoholpolicy.niaaa.nih.gov/the-1984-national-minimum-drinking-age-act