Where or what the hell is Rivera Beach, MD. I'll tell you. Its where I grew up in the 1960s. Its located about 20 miles south of Baltimore and about 50 miles north of Washington DC. In the 1960s is was total middle class. Over half of the people worked in the local area, some were blue collar workers from Baltimore and a relatively few were long distance white collar commuters into the nation's capital.
It was a community with active civic organizations. Local residents did what many bumbling bureaucrats try to do today. The local elementary school was actively run by parents that often sat in on classes. Parents looked out for all of the neighborhood kids. So did older retired people. I remember my retired neighbor Mrs. Kamp on her porch making sure walking home students were orderly and not fighting. Neighbors car pooled and even car shared. This of course a time of mostly just working fathers.
Kids played in the small section of woods with no fear. Neighbors were always on the lookout for any bad element. Lawns were cut and manicured and streets clean. Local businesses took care of needs from the bank to the grocery store to the local bar. Men volunteered at the firehouse, one of the three local churches (the Catholic church the biggest), the neighborhood watch, Little League, etc., often a combination thereof. There was a local committee of women that looked after the elderly and sick, volunteered at the elementary school, ushered kids across the street and cleaned the churches. Everyone had some kind of community involvement.
The local beach was maintained by the community. A summer's day would include families and parents needing the day to take care of other matters could rely on another parent to look after their kids. I think my parents knew everyone in that community by at least site if not name. People loved to congregate on someone's large porch or a street corner, drink beer or ice tea and talk (not rant) about current events.
Sadly the move towards McMansions, homes without porches, and deattachment from communities has killed this kind of experience growing up. My parents actually moved away in 1969 to get a bigger home with more land and my life was never the same. By the 1970s this kind of community was being replaced by the government and big business.