Social-Media Firms Would Have to Consider Children’s Health Under Bill Passed by California Legislature

California’s legislature passed a bill Tuesday that would for the first time in the U.S. require the makers of social-media apps such as Facebook, Instagram and TikTok to consider the physical and mental health of minors when designing their products.

The bill passed in a unanimous, bipartisan vote in the Assembly after doing the same in the state Senate on Monday. Both chambers are dominated by Democrats.