Ключевые слова: biracial, bus, card, city, commuter, contactless, electronic, ethnic, female, girl, hand, happy, hindu, holding, indian, machine, metro, millenial, mixed race, modern, outdoor, passenger, pay, paying, payment, person, plastic, public, reader, service, system, terminal, ticket, train, tram, transport, transportation, travel, urban, validate, validation, validator, vehicle, woman, yellow,