>>212653960
Tourists are riding on a train used by local residents.
There is a special train that runs to the airport with a spacious interior, but the fare is expensive, so the tourists are probably taking the cheaper train.
The only difference is the price, which ranges from $10 to $20+, and most importantly, the ride is short.

I am sure this will become a problem and the shelves will be improved in the near future.