There seems to be an astroturf campaign to spread hysteria online about any age-related controls. A cynic might wonder if this is being done by the social media companies themselves.
That said, TFA is misreporting what the Illinois bill does and you can read it and decide for yourself.
“Devices must provide an interface at account setup for the primary user of the device to self-report their birth date or age. Then, after receiving consent from the user, the device can share that age-range signal with online platforms or companies to provide age-appropriate safeguards and privacy protections for minors.”
https://epic.org/illinois-passes-childrens-social-media-safe...
The primary source seems to be experiencing the hug of death at the moment. https://www.ilga.gov/Legislation/BillStatus?GAID=18&DocNum=5...