The main thing I took from it is that maybe I happen to know a lot more people than everybody else. Statistically speaking of course.
Yeah, and I don't know what you do, but having heard you mention having clients coming into your office on a regular basis and from context it sounds like a "professional services" type of job--law, finance, accounting, etc...
If so, you might see a lot more people on any given day than I do. And for many of those people depending on what you do, the ones needing some of those services may be older and more likely to be in at-risk groups. I.e. if you're in retirement planning, the bulk of people you'll see regularly are those who are near retired or already retired, right?
I go into my office once a week (WFH otherwise), and sit in my office and don't talk to anyone unless they come to my door lol. And most of the people there skew young-ish as it's a tech company; not to say it's not a wide range, but the younger ones outnumber the 55+ crowd by a wide margin. Other than that the only people I talk to regularly are my wife, my kids, and the fellow dog owners I see in the neighborhood and talk to when we're both walking dogs. And I don't do the Facebook thing, so I don't even really know what's going on with all those long-lost people from HS/college that I barely cared about then and have mostly forgotten now.
I suspect we're outliers on the opposite ends of the "interacting with people" spectrum so you have a wider group to be exposed to.
