The year 2021 brought both joy and anxiety for everyone and left many young Chinese born in the 1980s and '90s with many anxious questions: Should they marry and have children before their 30s? Do they have an advantage in their careers after age 35? It is common for young people to worry about their expiration date due to materialism, societal competition and family pressure. "C The Difference" takes you down memory lane with an episode about anxiety in 2021.