I think it's only a good argument if, when you weigh your ability to travel like a 18th century writer and the ability of the poorest in society to avoid destit

I think it's only a good argument if, when you weigh your ability to travel like a 18th century writer and the ability of the poorest in society to avoid destitution, you find that they come out close. The best argument in favor of welfare continues to be the Rawlsian veil of ignorance and I'm pretty sure that behind that veil I would pick welfare programs over free travel.