When I boarded the train on Ho Chi Minh City's first metro line, I was struck by the number of people already inside, carrying backpacks and briefcases. It was clear that this was not just a novelty but a vital part of the city's daily life.
When I first arrived in Taiwan from Vietnam to study, I was reluctant to walk to metro stations.
I took the Ben Thanh - Suoi Tien metro line to work on Monday, one day after it was launched, and the 18-km journey that used to take me at least 40 minutes was a smooth 26-minute ride.