@CNN: About 45% of US children ages 10 to 12 have a smartphone with a service plan https://t.co/XRQeA7D8VT https://t.co/2cjGpATtH1

@CNN: About 45% of US children ages 10 to 12 have a smartphone with a service plan https://t.co/XRQeA7D8VT https://t.co/2cjGpATtH1