no, in the US it isn't illegal. that's 100% company policy. and it isn't REMOTELY as bad as selling cigs or alcohol to a minor because THOSE acts are illegal. it's the same with R rated movies - the industry itself is in charge, not the government.
also that poll option doesn't make sense because minors ARE allowed to buy the game. 17 = minor still.
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The King Wang.
Listen up Urinal Cake. I already have something that tells me if I'm too drunk when I pee on it: My friends. - Colbert.