Group 1 - The implementation of free charging stations in Nanning's subway and other public transport facilities addresses the "battery anxiety" of passengers, providing practical value in the digital age [1] - The fast charging devices at Nanning's subway stations can recharge a phone by 30% in just 15 minutes, enhancing the convenience for commuters [1] - The proliferation of free charging services is seen as an essential extension of public services, ensuring equal access to digital rights and resources for all citizens, particularly vulnerable groups [1] Group 2 - Other cities in China, such as Hangzhou and Shenzhen, are integrating free charging into their public service systems, indicating a shift from mere convenience to a competitive urban soft power [2] - Nanning's approach to creating a "charging network" across transportation hubs serves as a low-cost, replicable model for other cities [2] - The advancement of free charging services must be accompanied by attention to data privacy and operational maintenance to ensure sustainable public service innovation [2]