What Is Gen Z And What Is After Gen Z All the TikTok dances, social justice warriors, and self-care bring to mind one thing – Gen Z. It is being predicted that Gen Z’s 18-25-year-olds will determine the future of the world. And while the older generations feel the most estrangement from Gen Z, the rest of the world can’t help but admire them. Read on to find out what the important Gen Z trends for 2023 are.