If you are a disabled person living or working in Paris this might put you in a really bad spot. Because Paris' subway system is mostly not accessible to disabled people. (Few or no elevators / escalators in key subway stops).

I know this from personal experience when I took my two kids in strollers to Paris. Lugging the strollers up and down stairs was a nightmare.

But maybe disabled people have other options like buses so it might not be as bad as it seems initially.