Having to live without a backyard and in a small space, crowded with other people, and having to deal with constant traffic.
> In most cities, they are the most expensive places to live - they are the most expensive, nicest places to live in the world.
And that's EXACTLY what makes downtowns "misery centrals". An average person will NOT be able to afford a large comfortable apartment.
> Argument through condescending dismissal isn't persuasive, and doesn't prove anything.
The thing is, no city in the US managed to increase affordability by either building transit or increasing density. Not a single one.
I don't have data for all the world, but it also holds true for several European cities. Oh, and Tokyo in Japan.