Add Yahoo as a preferred source to see more of our stories on Google. Ryan Kaji, the creator behind the YouTube channel Ryan's World, at 12 years old. - Credit: Photographs by Maggie Shannon I ...

I remember I had a tablet,” 12-year-old Ryan Kaji says, recounting his earliest memory. “I was just clicking, scrolling, watching videos. I was a little kid, maybe three years old.” His father, Shion ...