Bruce hasn't been around the younger Dick Grayson for long enough to realize that this is just how he is. He's always been stubborn.

His own gaze softens a bit once Bruce relents and he nods. "Of course. I will absolutely make sure you remember to do that." Bruce will remember on his own, of course, but Dick still grins quickly at him. "Come on. Let's get clothes and food." And if the clothing weren't a danger on the bike, Dick would just hit a drive-thru.