The idea of internet addiction is a particular concern among parents, who worry about the harmful effects of screen time and often argue about device use with their children. According to a 2019 survey conducted by Common Sense Media, children aged 8 to 12 now spend 5 hours a day on digital devices, while teens clock more than 7 hours—not including schoolwork. Teen screen time is slowly ticking upward, and most teens take their phones to bed with them.