Where the heck did you grow up!
I grew up in the country and while it did happen it was rare, fortunately.
My grandfather was raised in a rough area to be clear.
But I noticed kids throwing rocks at animals all the time back in the ‘70s in a variety of places. I never did except one time when I went squirrel hunting with my cousins. I felt TERRIBLE — we did end up killing one with rocks. Last time I went hunting.