There are real concerns about how a social media ban for under-16s will work. But tighter rules could be a step towards a better internet for everyone

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

LONDON -- British Prime Minister Keir Starmer on Monday announced a forthcoming ban on social media for users under the age of 16 at a Downing Street press conference, saying it…