I would think that it depends on the jurisdiction where you live. These days, selling to a minor is a big deal. If it is not a felony in your state/city/county, then you might get the max penalty for the misdemeanor. Don't do it again! My son used to clerk in a liquor store when he was in college. The cops were constantly dropping off underage folks to try to buy liquor.
Definition of etch. 1  1 : the action or effect of etching a surface. 2  2 : a chemical agent used in etching.
Acid etching. The process of etching the surface of glass with hydrofluoric acid. Acid-etched decoration is produced by covering the glass with an acid-resistant substance such as wax, through which the design is scratched. The object is then immersed in hydrofluoric acid, or a mixture of dilute hydrofluoric acid and potassium fluoride is applied to etch the exposed areas of glass.