I've lived in a few different places, and mostly really only encountered leaf blowers either for some larger scale work like cleaning up leaves on a university campus, or for cleaning debris from parking lots.

I've recently moved to an area with single family or attached homes on small lots, and inexplicably, everyone has a leaf blower. Most houses have a driveway and parking area, and about 10 square feet of lawn, but for some reason all the guys are out blowing leaves around... I'm supposing there must be pockets where culturally that's what people do, I certainly don't get it