If you had told most people 20 years ago that many of their families and friends would be able to track their exact location at any moment of the day, many of them likely would have been horrified. So why has location sharing become such a popular feature among young people, friends, and families?
In this episode, Katty Kay speaks to BBC Technology Columnist Thomas Germain about how location sharing turned from being a safety tool into something closer to a social test.
