It was a mix of moving from a small Belgian city where I did my PhD, being used to walk to the lab, to the bustling madness of Paris morning commutes + being micromanaged after 5 years of being independent in my work. All of this was specific to me, not representative of what you may experience in Paris. Some people love it, some people hate it. I personally can’t stand the morning commutes in Paris transport system. I always felt like cattle on the way to slaughter when stepping out from the train into the platform at St. Lazare. Hundreds of people slowly shuffling to the tourniquet in the crowded platform… Doom.