§ 91.08  UNDERAGE PERSON SHALL NOT PURCHASE INTOXICATING LIQUOR OR BEER.
   (A)   Except as otherwise provided in this chapter or in R.C. Chapter 4301, no person under the age of 21 years shall purchase beer or intoxicating liquor.
(R.C. § 4301.63)
   (B)   Whoever violates this section shall be fined not less than $25 nor more than $100.  The court imposing a fine for a violation of this section may order that the fine be paid by the performance of public work at a reasonable hourly rate established by the court.  The court shall designate the time within which the public work shall be completed.
(R.C. § 4301.99(E))