(a) is fixed because there&#x27;s probably no-one for the Texan to talk to on the bus.  For trains, the person to talk to is on the platform, and can simply let the train depart (example: Copenhagen Metro, although good luck spotting any staff).<p>It could be more easily fixed by accepting foreign credit cards (Gothenburg manages this, London if the card is contactless) or telling drivers not to wait.<p>(b) is partly solved if the cost of running buses&#x2F;trains is significantly reduced, as that leaves money for extra vehicles.<p>(c)... well, who will notice?