It is that way where I live too. I was raised in a neighborhood where everyone knew everyone (well at least within a few streets of your house.) I grew up knowing my neighbors and going to school with the kids around me. (Didn't know it but one of my best friends today lived a few streets up from me when we were younger and I didn't know her then).

But now, where I live, everyone keeps to themselves. A policeman lives across the street and the only thing he's ever said to me is why was I letting my dog pee on a patch of grass "near" his car. There is a lady a couple townhouses over that was waiting on a family member to come over to help her dig her car out of the snow a few weeks ago. I offered to shovel her car out but she refused. Said she would just wait on her family member to get there (so she stood out in the cold, in her curlers, waiting, instead of letting me help her).

I find it quite sad that this is the way things are now. I would love to know my neighbors but everyone seems so private.