My sister lives in Fox River Grove. We grew up downstate in a very small town in Central IL That’s where peopled waved. I now live in Huntington Beach CA. Nobody waves here, or even talks to their neighbors.
I grew up in Cicero, IL. I was there the day MLK did his march on Austin Blvd. My house was 2 streets over. Me and a few friends went to see it even though we were told under no conditions leave the house. Windows were a useful thing back then for me lol...