The legality of buying alcohol without an ID varies depending on the country, state, or local jurisdiction's laws and regulations. In many places, including the United States, alcohol sales are regulated by both federal and state laws, and these laws can differ significantly from one state to another.
In some areas, there might be specific laws that require individuals of any age to present identification when purchasing alcohol, regardless of their age. In other regions, the requirement to show ID may only apply to individuals who appear to be under a certain age, typically younger than 40 or 50 years old.
To avoid any legal issues or confusion, it is generally recommended to carry a valid form of identification, such as a driver's license or a government-issued ID, when purchasing alcohol, regardless of your age. This way, you can comply with local regulations and provide proof of age if required by the establishment or the law.
To get accurate and up-to-date information on the specific alcohol purchasing laws in your area, it's best to check with local authorities or consult the alcohol control board or agency responsible for regulating alcohol sales in your state or country.