I don’t think this would solve some of the issues they would need to solve, one of the main issues being bullying which is done by fellow children.

I don’t know that it would even solve the issue of predators as they would find a way on to a children’s only social media site and still be able to get access to kids. I believe it would be even worse as a children’s only one would instil false confidence in parents that’s it’s a safe space and the same can be said for the children themselves, believing everybody is a child on there.