Passport? Good.

Compared across countries

Can you eat on the train?

For a trip that crosses borders — the same question, answered country by country.

The pattern

Two systems, opposite rules. Taipei writes the ban into national law — eating, drinking, even chewing gum inside the fare gates draws a fine — while New York has no rule against eating at all, and saves its prohibitions for the open container of liquid and for alcohol anywhere on the system.

Sort the practical stuff before you fly.

eSIMs, rail passes, and airport transfers — the things worth booking before you land.