Another person kindly helped the elderly to open the Yangchengtong credit card code on the bus. At the subway station, the old man thought he could take the subway with Yangchengtong bus code, but he couldn't brush it. He didn't know that he had to open a special subway code to take the subway.
The society seems to be progressing, and the trained talents have created things that are convenient for travel, but the older generation is inconvenient and can't move.
The times are updating, but people are old people and do not adapt to the times. It is really "never too old to learn". If you don't study, you will be eliminated by society, and you can't even sit in the car.