SDCL § 42-7B-35: Age of participants--Violation as misdemeanor.

Any participant in any gaming shall be twenty-one years or older. No licensee may permit any person who is less than twenty-one years of age to participate in any gaming. A violation of this section by a participant is a Class 1 misdemeanor and a violation by a licensee is a Class 1 misdemeanor and may form the basis for revocation of a retail license.