Teenagers endure so much pressure and stress maneuvering the complicated world of social media. But teen TikTok stars Charli and Dixie D’Amelio have some thoughtful, mature advice to offer the next generation and those who want to follow in their footsteps. “A lot of people around my age, some younger, some older, are the prime ages for most types of bullying,” 16-year-old social media sensation Charli shared in a new profile with Seventeen.