Do we need more innocence? Experts and parents worry that using smartphones is damaging young people's mental health. Some think it is time to stop letting children spend so much time online.
UK plans under 16s social media ban

Glossary
Law - A rule that everyone must follow.
Social media - Social media is defined by websites, apps and social games that connect people to each other through the sharing of pictures, thoughts, ideas, articles, and other content.
Mental health - The part of your health that has to do with your mind, your thoughts and feelings.
Anxiety - A feeling of unease or worry. It can be mild or very severe.
William Blake - Poet and printmaker associated with the Romantic Age (late 1700s and early 1800s). The Romantics were often doubtful of the value of science - they thought it gave reason too much credit.