[vladvasiliu]

I'm not aware of any zoning laws in France, at least not the kind there seem to be in the US. There are technically shops close to where people live, the issue is their opening hours aren't practical for workers.

A quick glance at Wikipedia tells me that the "urban" area of Copenhagen is ten times smaller than that of Paris (292.5 km2 vs 2,853.5 km2). Not sure how comparable those are in practice. But a 25-minute bus ride with no traffic, in Paris, would put you inside Paris proper, not in the suburbs. Public transport is fairly good there.

The issue is many people live and work outside of Paris proper, and transit from suburb to suburb is poor. Most suburban trains go to Paris and bus routes are relatively short. They're working on improving things, but there's still much to do. So the issue is more one of time, rather than zoning per se. People don't have the time to go to the local shops were they live, so towns don't thrive.

Maybe if there was less concentration, so if instead of having one big city in the middle of an enormous suburb, there were multiple smaller cities, the situations would resemble that of Copenhagen. But for some reason, people insist on running all their businesses in the same few spots and bring people in from long distances (relatively speaking).