Also, in my experience older people just get more paranoid. I have seen it happen with family members who are otherwise pretty sharp. They get more wary or suspicious in ways that aren't very rational. Since that is a lot of the folk who hang out on places like Nextdoor, I can see how that goes. That's why you need diversity and young families in neighborhoods. It provides balance.
"The Culture of Fear: Why Americans Are Afraid of the Wrong Things"
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