There's a reason you don't see toys and merchandise for kids, even completely free of actual tobacco or alcohol content, carrying branding for those products.
Is it completely consistent or good that Google gives an award to a game intended for adults while banning a similar game pitched to kids? No. Is it at least consistent the legal and social conditions in the US? Yes.
If you want to make an argument that it's fine to target minors with products that simulate or appeal to similar interests as gambling, smoking, or alcohol, by all means make it. But don't conflate entertainment provided for adults with games for kids.