Neighborhood socialization seems to have gone the way of the dinosaur. Kids used to play outside all the time and simply meet up in a park or on a street corner, and things would evolve from there-whether it was riding bikes, building a fort in the woods, a pickup game of baseball, wiffle ball, football, etc. Parents of kids would get to know each other through their kids' friends. Parents used to go to their kids soccer and baseball games and socialize there. After years of coaching baseball and soccer, I saw fewer parents attending games, and many stood alone staring into their phones.
When we lived in townhouse in North Brunswick, NJ back in the early 1990's, we regularly talked with our neighbors. In 1995, we moved to Cincinnati, Ohio, which to this day, in my mind, is the least friendly place in in the US. We moved back to North Brunswick for a year and then upstate New York in the late 1990's where neighbors seemed to socialize more. Think all of the socialization was lost with the mobile phone and mobile device.