Once the rail lines are paid for, the cost per passenger is very low This statement is patently wrong. You can't just build a rail line (plus signaling, plus o

Once the rail lines are paid for, the cost per passenger is very low This statement is patently wrong. You can't just build a rail line (plus signaling, plus other necessary infrasatructure) and then just forget about it. You also need massive capital investments into the rolling stock and all this requires significant maintenance. An argument can certainly be made if public transport should be free, but stating that the costs are low and essentially paid for once the (very expensive) infrastructure stands is just ludicrous.