1. Chinese birthday traditions—symbolic foods like red eggs and longevity noodles, taboo on 80th birthday, preference for daytime celebrations, elders celebrate in restaurants, popular gifts include cash and smartphones 2. Social media effects—boosts confidence, supports female empowerment, spreads misinformation, affects daily life, generational usage gap between youth and elderly 3. Urban pollution comparison—Beijing suffers from traffic and industrial emissions, Shanghai benefits from sea breeze, hydroelectric energy, vegetation, and humid rainy climate 4. Income and gender inequality—education and medical access gaps, rural chronic illness from poor living conditions, female income disparity, societal instability risk 5. Belt and Road railway—Yiwu to London freight exchange, goods include clothing and UK brands, lower cost than air, faster than sea, boosts trade and diplomacy 6. Chinese heritage learning challenges—children see Mandarin as hard and irrelevant, parents rely on weekend schools, issues with time and class quality, media and daily use encouraged for language retention