Here are some questions...
How will they define "social media?" So would it include something very harmful like IIDB (haha, no really, that is harmful in the eyes of religious)? How about video games with messaging systems like warcraft? Video game platforms with messaging like say playstation? Innoccuous Club Penguin for little kids? Pokemon Go? Most video games these days have things where you can make friends... How about things like whatsapp which isn't quite on the Internet but is on the phone? Snapchat? Kids are sexting and joining group chats on phone sans Internet and so how much of that is encompassed by this bill? bullying often happens thru phone but not on twitter or facebook.
Next question: Utah is making the age 18. Other states like Connecticut are making it 16 which happens to be the age of consent in CT. Should it be 16 or 18 or some other age?
Finally, can states actually do this to international companies? I mean, they can try, but these aren't companies incorporated in their state but some other state and this seems to fall under interstate commerce, making the US congress legislation more applicable. Or is that wrong?