That was the biggest redpill about the Tenement Museum in NYC. All of the old photos show immaculately clean buildings despite the tenants being extremely poor yet this is what it looks like today with residents orders of magnitude wealthier
I touched on this a bit in my Cincinnati apartments bit (I picked Cincinnati since I felt that something like Texas and California would be a poisoned choice, plus I did it to obfuscate my location). In those days, not only did apartments have some sort of contrived theme, apartments could be choosier about who their tenants were—even in the 1970s you could have an "adults only" community, meaning you could tailor the apartment appropriately, no need to have a children's playground or advertise being near schools, and because of this it also meant you could cut out the problems of Shaniqua and Juanita and her five children being problems.
It was a good solution--you can build a community by having things in common, you could cut out needless expenses, and you don't even need to exclude non-whites. Unfortunately, at some point in the 1980s the law (Civil Rights Act rears its head again) was amended that pregnancy and having children were considered to be "discriminatory" and you couldn't have adult-only apartments anymore.
This is why modern apartment complexes are a hellscape now. The average
5-over-1 and preferred bugman housing (it's often used in apartment redevelopment) is some painted box named "The [noun]" and while some traditional apartment complexes (built in the last 10-15 years) have clubhouses and scheduled events, they can't really specialize in anything, so it just becomes indistinguishable mush with people who have little in common with each other other than they live at the same apartment complex. There's nothing to brag about except stock photographs of "diverse"-looking "happy" people.
Meanwhile, 65+ communities can exist (since age isn't a factor in these anti-discrimination laws), have a calendar chock full of events, and residents get along with each other since they're similar age. (Off-campus college apartments exist with the same purpose.)
This is a point where modern liberalism overrides urbanism ideals. By all means, bugmen would enjoy the apartment complexes of old (if placed next to a transit line, at least), where they could enjoy a world without children and go to the apartment clubhouse (pretty sure that every weekend the bar was open for residents) to find other people around their age to hook up with. But they don't.