海角大神

In recent years, Britain has been a nag on the world stage in warning about the effects of excessive 鈥渟creen time鈥� on children and young people. Now it wants to go from nag to nudge.

Last week, its health secretary, Matt Hancock, said the government would soon issue an official 鈥済uidance鈥� for parents to help them ensure healthy limits for their kids in using social media and controlling their access to online sites.

He suggested one bit of guidance would likely be turning off phones when children go to bed. 鈥淎s a parent you want to be able to say, 鈥楾he rules say you shouldn鈥檛 use social media for more than a certain period of time鈥�,鈥� he said. An estimated 1 in 5 young people wakes in the night to check messages on social media.

While Mr. Hancock welcomes the tech industry鈥檚 recent moves to provide new tools for parents, he says they do not go far enough or, in the case of age limits, are not well enforced. Government now needs to step up as a watchdog and, at the least, set a norm for society. Too much screen time can create feelings of isolation for many teens and unrealistic expectations about themselves, some studies find.

The government鈥檚 guidance might actually be welcomed among young people. A British survey last year of 14- to 24-year-olds found 56 percent said they are likely to quit social media out of a concern for their mental well-being. More than 70 percent support a pop-up warning about excessive time on social media.

Parents do need to find a balance between encouraging the benefits of digital devices for kids, such as new ways of learning, and preventing the negative effects. Each family is different in designating tech-free times. And parents know best the capacity of their children to self-regulate and protect themselves.

Rather than being always cautious, parents can emphasize what the internet does best. 鈥淲e should promote children鈥檚 critical spirit and their ability to analyze and distance themselves from over-using their phones,鈥� Rachel Delacour, co-president of industry body France Digitale, told the Financial Times.

Last summer, Mark Zuckerberg, cofounder of Facebook, wrote a letter to his new daughter, August, in which he spoke about the many fun activities ahead for her. He did not mention social media. 鈥淭he world can be a serious place,鈥� he wrote. 鈥淭hat鈥檚 why it鈥檚 important to make time to go outside and play.鈥�

Perhaps that bit of wisdom will be included in the coming 鈥済uidance鈥� in Britain. Another survey there found children now play outside half the time that their parents did when they were children. A nudge to get them outdoors can only help them see themselves on a larger screen of life.