On: being specific

Starboy enjoys clearing his dishes to the kitchen after he's finished eating, and recently has discovered Helping Mommy Load the Dishwasher.

I've told him it's fine for him to put his drinking glasses in there when he's clearing his place, and he does so well with direction that it never occurred to me that my instructions weren't complete.

So he wouldn't, maybe, understand that to clean the glasses, they need to go upside-down in the dishwasher rack...