If you didn't charge for ambulance rides the poor would abuse them and use them as taxis, laughing while hard-working law-abiding property-owning citizens would die from heart attacks because all the ambulances are busy driving irresponsible poor persons to liquor stores and drug dens.
ah but you see poor people are feckless and if you gave them free ambulances they'd only spend them on drugs and booze
How could I forget about the moral hazard?
If you didn't charge for ambulance rides the poor would abuse them and use them as taxis, laughing while hard-working law-abiding property-owning citizens would die from heart attacks because all the ambulances are busy driving irresponsible poor persons to liquor stores and drug dens.