In Japan, eating and drinking in a taxi is generally strongly discouraged and considered poor etiquette, though it is not strictly illegal. Japanese taxi drivers take immense pride in the cleanliness of their vehicles; many cars feature pristine white lace seat covers and spotless interiors. Eating risks leaving crumbs, odors, or spills that would be disrespectful to the driver and the next passenger. While taking a small sip of water or tea from a re-sealable bottle is usually acceptable, eating a full meal or anything with a strong smell (like fried food) is a major "taboo." In 2026, etiquette remains a cornerstone of Japanese society; if you absolutely must eat, it is polite to ask the driver first by saying, "Shokuji wo shitemo ii desu ka?" However, most locals would simply wait until they reach their destination. Also, remember that taxi doors in Japan are automatic—do not try to open or close them yourself!