In many Asian countries, you will hear that younger generations respect their elders. That is certainly true in Korea and one of the best places to see that is one buses and subways that crisscross the nation, for they have reserved seating.
Here you can see that the reserve seat cover indicates that while anyone can sit here, the seat should be offered up to those that are injured, elderly, or pregnant. On many subway cars, they will add a fourth category: mothers with an infant.
Do buses and subways in your country have reserved seats?