I don't disagree with your answer but... Kids cannot buy alcohol and kids cannot buy cigarettes. It's kinda the whole point of TFA.
The conclusion of TFA aren't to outlaw social media: it's preventing kids from accessing these mediocre piece of shit websites/apps before 16.
As a result governments have stepped in and now there are age restrictions on both smoking and alcohol, blood alcohol limits for driving, lockout laws, no advertisement of cigarettes in supermarkets, additional taxes on cigarettes, plain packaging on cigarettes.
Making something immediately completely illegal isn’t necessarily the correct course of action. But governments have stepped in to try and help people exercise personal accountability.
Disclaimer: the examples are from within Australia