One day, a woman was volunteering at a local community center for senior citizens. While she was there, she noticed that many of the elderly visitors could not use their smartphones very well. An older man with a cane kept staring at his phone with a confused look on his face. He did not know how to use even the basic functions. The woman felt worried and decided to do something to help. Two weeks later, she started a free smartphone class at the center. She used a whiteboard to show the seniors how to make video calls, send messages, and save emergency contacts. The seniors listened carefully and tried the steps on their own phones. One month later, the results were wonderful. The elderly man who had struggled before was now sitting in his armchair at home, happily video calling his grandchildren. He smiled with great joy when he saw their faces on the screen. A few months later, however, the woman opened her laptop and found that forty-eight seniors were on the waiting list for her class. She stared at the screen with a surprised expression, realising that she needed to find a way to help more people.