I have been using take subway , express buses two times a weekends on in South Korea. At first, I was worried that I might be in a state of shock. In the Seoul subway, there are people who are all in a hurry. The level of public transport service, when looking at the situation of customers, shows exactly where the development of the country is.
It's really clean, fast, convenient, it's easy to get where you want to go, it's easy to know where to go online, and it's amazing that the map app app directions are all clear.
The customer service culture and practice are even more amazing. This is because it can indicate the moral level of a country's citizens. Even though he is a very tired old man, he does not tell the first person to get up. It is possible to run and sit in an unoccupied seat, but it will not sit, because an elderly person with a sign will only sit with injured people, otherwise you will not sit. You can sit down, but I didn't break up with the person sitting down. Of course, there are people in all walks of life who are uncomfortable, tired, and in a hurry, but the fact that they have a highly cultured population in Mongolia can only be seen by using public transportation several times. Awesome