The legal drinking age in Arizona is 21. An exception to this law is if a minor is accompanied by a parent, legal guardian or spouse that is of legal drinking age. However, minors are still not allowed to order or consume alcoholic beverages on the premises.
When it comes to serving alcohol to people under the age of 21, Arizona provides exception for parents who choose to allow their children to drink, for instance, a glass of wine with dinner in their own home. Outside of immediate family members, it is a class 1 misdemeanor to provide alcohol to minors.
It is illegal to sell alcohol to anyone aged under 18 and for under 18s to buy or attempt to buy alcohol. However, children aged five to 16 are legally allowed to drink alcohol at home or on other private premises. “If children do drink alcohol, they shouldn't do so until they're at least 15 years old.”