In 2026, eating inside trains is not only allowed but often encouraged as a way to enhance the travel experience. On long-distance trains like Amtrak, the Eurostar, or India's Rajdhani Express, you can enjoy full meals in dedicated dining cars or have food delivered directly to your seat through advanced e-Catering apps. It is generally polite to avoid "pungent" or messy foods in shared seating areas, and you should always clean up after yourself. In contrast, some local commuter subways or short-distance "metro" systems (like in Singapore or Washington D.C.) strictly prohibit eating to maintain cleanliness. Always check for signage on your specific line; however, for the vast majority of regional and international rail journeys, bringing your own snacks or ordering from the onboard bistro is a standard and comfortable part of the journey.