OTTAWA, June 10 -- Asked why the legislation had jumped the queue of everything else a new government wants to do, Marc Miller did not reach for a statistic. Kids are dying, the minister told reporters, and the sentence did the work a briefing book could not. Within a day of London confirming its own crackdown, Canada moved to take its children off the platforms.

Mark Carney's government gave notice on Tuesday that it will introduce the Digital Safety Act, legislation expected as early as Wednesday that would bar children under 16 from social media, impose safety duties on artificial intelligence chatbots, and stand up a new regulator, the Digital Safety Commission of Canada, to enforce all of it, CBC News reported.

The Canadian design ...