Just to be clear, because I had to look into it a bit, California’s law won’t require photos/IDs. “Operating system providers need not collect additional information like photos of government IDs to verify the user’s age. Based on this age information, operating system providers must send digital signals via real-time API (age signals) to developers upon request, transmitting the user’s age range bracket – under 13, at least 13 and under 16, at least 16 and under 18, or at least 18. When a user downloads and launches a developer’s application, the developer must request an age signal from the relevant operating system provider or the application store from which the user downloaded the application.” So I’m assuming those companies backed it because they want more analytics about the age ranges of the people who use their products.