That may be true of people just out of school but my experience over a fairly large number of years was that relatively few people lived in the city and commute

That may be true of people just out of school but my experience over a fairly large number of years was that relatively few people lived in the city and commuted out to a suburban office park. For one thing, even reverse commutes can be pretty slow in a city with a lot of traffic. I rarely drive into the city for evening events partly for that reason.