> we could only get the physical cards at the airport and at some tourist office, and we forgot to look for it at the airport

Little over a decade ago I did exactly the same. I ended up buying a Suica card at Ueno station from a clerk, which was a bit of an adventure since she was eager to help but barely spoke any English and I barely spoke any Japanese. Together we skillfully massacred both languages with an ad-hoc pidgin and lots of gesturing. Due to an issue with my wireless hotspot I only had an old school phrasebook at my disposal, which was about as helpful as the infamous Monty Python sketch implies. The airport seemed much more convenient as a tourist since everyone there at the very least spoke basic English. At the time it was certainly possible to get a Suica card at a major train station, though admittedly not easy.