Agree on the tube in London. And it has many more challenges than Paris, narrower, deeper and older tunnels. But somehow it feels like a more civilised crowd, p

Agree on the tube in London. And it has many more challenges than Paris, narrower, deeper and older tunnels. But somehow it feels like a more civilised crowd, people are queuing, not pushing (the narrow crowded platforms would be lethally unforgiving) letting people out first, the cars and tunnels aren't filthy (with the notable exception of Saturday night).