No for jeans. I prefer to wear my jeans for other activities. They're way too hot for wearing to work in the summer. Even now that it's cold outside, I still sweat while we're unloading the truck. And sorry to point it out, but they just look sloppy on some of my fellow TMs. Granted, they might look sloppy in khakis too, but not as much.
And I agree with others who say as perks and rewards go, this one is really lame.