Iowa Code § 725.19: Gambling by underage persons.

1. Any person under the age of twenty-one years shall not make or attempt to make a gambling wager, except as permitted under chapter 99B. A person who violates this subsection commits a scheduled violation under section 805.8C, subsection 5, paragraph “a”.

2. A person who knowingly permits a person under the age of twenty-one years to make or attempt to make a gambling wager, except as permitted under chapter 99B, is guilty of a simple misdemeanor.