We used to do that all the time as kids on Long Island. For the past 15 years or so, we've hardly had any fireflies in Massachusetts. The only place I've seen a lot of them are on Cape Cod in certain locations. It's kind of baffling. I'm sad my kid didn't get to do this.
I have memories of going to my grandparents' and great-grandparents' homes with nearby creeks - we go wading and catch minnows, trying not to break out necks on the slippery river rocks. So much better than sitting in front of a TV or computer screen!
Our son used to "upgrade" from the typical beach bucket with a few fish and snails - he took a large plexiglass cube and created entire habitats with sand, seaweed, shells, and various critters. He always attracted a ton of kids, from age 2 to age 14, who loved participating. Great socialization with new faces, and great appreciation of nature.
When I was a kid, they would send an old-style jeep through the streets spraying for mosquitoes. We'd call it "the smoke machine" and our parents let us run through the spray. Dumb dumb dumb. Visibility was terrible and I'm sure it was awful for our lungs too. But everyone did it then because no one knew the hazards.
The other summer classic - the ice cream truck. Same stupid jingle, same overpriced snacks, but no one cares!