Paris has always had this very dense city core where 99% of daily life is 5-10’ away. It’s a great concept for dense metropoles, but it only works because the city is so small: 100 square kilometers in an ocean of much lesser density. 80% of “Greater Parisians” live outside Paris itself.
Unfortunately there is no actual representations for 80% of those “outside Parisians” since they are split between hundreds of small cities with individual political dynamics. Pure game theory as local governance.