Group 1 - The core idea of the event is to bring joy and a sense of childhood back to elderly individuals who have never experienced the happiness of Children's Day due to their difficult pasts [4][8] - Volunteers from Ping An Property & Casualty Insurance organized a heartfelt activity in the Yintang community, featuring games like ring toss, bubble blowing, and flying balloons to engage the elderly [4][5] - The event served as a "make-up" ceremony, allowing the elderly to relive joyful moments and highlighting the sacrifices made by previous generations during challenging times [8][5] Group 2 - The elderly participants expressed their long-lost joy, with one 81-year-old grandmother reminiscing about her childhood hardships during wartime while watching the bubbles float away [4][8] - The interaction between the elderly and young volunteers showcased a bridge across generations, emphasizing shared happiness and the importance of remembering the past [5][8] - The event concluded with a poignant reminder that the laughter of today is built upon the resilience and sacrifices of those who came before [8]