“Please take these toys away from your kids and make sure they don’t get on social media. There is no upside to them having this access either now or in the future.”
Flip phones are your friends. I kept my kids off of everything humanly possible (even going to the point of snipping out WIFI antennas in their computers), and their phones were flip phones until they were 18. Did they get on anyway - of course, but it was limited as it had to be through their friends.
And no, it didn’t damage them (I know, hard to believe).
Everybody else has a flip. Even my husband just has a flip.
It just is not healthy the way people are on those things all the time.