Come on, can't you imagine that people would CHANGE their habits if their environment changed? We wouldn't make the same kind of choices about where to go, where to put businesses, how to move around, etc.
And besides, it's not like Paris doesn't have a precedent of the state forcefully changing the physical landscape of the city, although it may not be too popular with some: https://en.wikipedia.org/wiki/Haussmann%27s_renovation_of_Pa...