Your child, if he/she was born after 1998! Modern teenagers have grown up in a world, not in which they had to adapt to technology, but in which it was assumed. They’ve never known a world without it.
There is no single, black-and-white answer to the question of when to get a child a smartphone. Besides considering the following list of factors, you’ll also need to take into account what you know about the personalities and integrity of your children.
“When to allow children a smartphone has become among the most pivotal of parental decisions in the decade since Apple Inc.’s Phone remade daily habits.”
—Betsy Morris, The Wall Street Journal