LONDON (AP) — Britain will ban children aged under 16 from using a range of social media apps, including Snapchat, TikTok and YouTube, to protect them from harmful content and excessive screen time, Prime Minister Keir Starmer said Monday.

The ban, which is expected to take effect early next year, makes the U.K. part of a growing global movement to tighten online safety for children. Australia, Canada, Brazil and Indonesia have introduced legislation or announced age-based restrictions or requirements for children's access to social media. France, Spain, Denmark, Thailand and South Korea are among others studying or developing similar approaches.

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"Every parent can see it with their own eyes. Social media is making children unhappy," said Starmer, who has two teenage children. "I've heard first hand from families crying out for change and we will do right by them."

The plan was met with mixed reaction, with some praising Starmer for taking action and others questioning the effectiveness of a blanket ban.