Landline phones are back—and they’re helping kids connect safely with friends

In today’s world, communication is largely done through one of two methods: smartphones or social media. Young children, however, rarely have access to either—and experts say they shouldn’t have any access at all until age 13 or later. That leaves many parents as the gatekeepers of their children’s social lives, long past the days of mommy-and-me classes and playdates. But an old-school solution is giving kids more independence: the landline. Once considered obsolete (AT&T even...