The UK government's decision to introduce restrictions on children's access to social media marks a significant moment in the evolution of online safety policy. For supporters, it represents a long-overdue response to growing concerns about children's well-being. For critics, it raises questions about effectiveness, enforcement and unintended consequences.

Government wants to back parents against ‘huge tech giants’ though some feel the process has been rushed

The U.K. seems to be following Australia's lead in banning a wide swath of social media for teens.