Not a bad idea, but of course, everyone is complaining that starting school early will interfere with vacation and camp plans.
I don't buy it though. Take your vacation earlier and when I was a kid, camps ended in the middle of August anyway. The complaints are a bunch of tripe. The fact that schools traditionally start around labor day is a holdover from a largely agrarian society--which has never existed in DC at all.
D.C. Bid to Start Fall Term Aug. 14 Sparks a Backlash