[OPINION] Canada’s age-verification bill for porn is a slippery slope to a restrictive internet
(www.theglobeandmail.com)
I can't think of any method of restricting content from children that couldn't be leveraged to restrict content in general, or collect personal information.
The dangerous parts of social media affect adults too. Maybe we need to regulate social media platforms in some way.
Or just have better and more widely available local parental control systems. I can block specifically all social media without affecting other sites, but that's because I know how. Perhaps DNS blockers need to be government recommended?