 Is your child asking for a smartphone? If so, you're not alone. I'm Tammy Silverman, president and CEO of Indiana Youth Institute. Smartphones have skyrocketed in popularity, especially with youth. Researchers say nearly 95% of teens have access to a smartphone. How do you know if your child is ready? Experts say there's no magic age. Instead, ask yourself if your child is ready to use a smartphone in a responsible manner.