This is a very basic advice, but something we tend to forget. We remember to wash our hands but with fruits and veggies, we rather take it easy because they look so clean anyway. But it is rally important to wash all the fruits and veggies before consuming them because apart form the dust, they could also be sprayed with chemicals which you do not want to have.
I also have kids who just rush in and grab something to eat from the refrigerator. Therefore, I normally wash all the fruits and veggies before storing them, so it is clean and ready to eat.