Part of the reason the Californian bill was struck down was that Cali failed to demonstrate that it actually served the claimed interest of protecting the developing minds of children or that it was the least restrictive means of doing so; surviving the challenge would have required both. There was also a bit requiring labeling, but that was struck down as well as what constitutes a "violent" game is far too subjective for the label to be factual.
Biting the hand that feeds IT
