This is very true; I've experienced both extremes.
In one neighborhood there was a yearly block party where we closed the street and cooked out, kids played together in the street consistently and visited each others' houses, neighbors babysat, etc. Everyone on the street knew everyone else's name. Whether this was a suburb is maybe up for debate, I don't know, but it was at least all single family homes.
I moved directly from that to a more rural suburb. Homes were still pretty close to each other - nobody had much land - but there were no sidewalks and the neighborhood was a network of cul de sacs. I knew the last names of my two next door neighbors but only talked to them maybe three times in about ten years. I knew of some people ("a fire chief for a nearby town lives in that house, that one has a family") but that's really it.
My assumption is that this is getting worse over time as entertainment gets more and more individually catered. Basically _Bowling Alone_ but moreso and as the most civically-minded people die off. Not sure if there's anything individuals can really do about it other than be friendlier with your neighbors
In one neighborhood there was a yearly block party where we closed the street and cooked out, kids played together in the street consistently and visited each others' houses, neighbors babysat, etc. Everyone on the street knew everyone else's name. Whether this was a suburb is maybe up for debate, I don't know, but it was at least all single family homes.
I moved directly from that to a more rural suburb. Homes were still pretty close to each other - nobody had much land - but there were no sidewalks and the neighborhood was a network of cul de sacs. I knew the last names of my two next door neighbors but only talked to them maybe three times in about ten years. I knew of some people ("a fire chief for a nearby town lives in that house, that one has a family") but that's really it.
My assumption is that this is getting worse over time as entertainment gets more and more individually catered. Basically _Bowling Alone_ but moreso and as the most civically-minded people die off. Not sure if there's anything individuals can really do about it other than be friendlier with your neighbors