20 ILCS 1605/15

No person shall sell, distribute samples of, or furnish a lottery ticket or share to any minor under 18 years of age, buy a lottery ticket or share for any minor under 18 years of age, or aid and abet in the purchase of lottery tickets or shares by a minor under 18 years of age. No ticket or share shall be purchased by, and no prize shall be paid to any of the following persons: any member of the Board or any officer or other person employed by the Board or by the Department; any spouse, child, brother, sister or parent residing as a member of the same household in the principal place of abode of any such persons; or any minor under 18 years of age. Any violation of this Section by a person other than the purchasing minor shall be a Class B misdemeanor; provided, that if any violation of this Section is a subsequent violation, the offender shall be guilty of a Class 4 felony. Notwithstanding any provision to the contrary, a violation of this Section by a minor under 18 years of age shall be a petty offense.