I suppose the oldest part can get a card like SL has and occasionally load it with cash and then just beep it when entering the bus/train? It is no more difficu

I suppose the oldest part can get a card like SL has and occasionally load it with cash and then just beep it when entering the bus/train? It is no more difficult a concept than having a library card. They'll certainly get help with the process at the ticket counter. Is it a real, factual problem that old people cannot somehow pay for their mass transit in the year 2018?