If I am not mistaking, the wonderful thing of aspects is just that you
do not have to think of all of them in advance, or standardize them
You'll probably see a lot of attempts at getting a scene to be
Dark or
Shadowy, perhaps
Slippery When Wet when it rains or the sprinklers are on. The fun part is (and should be) that you, as a GM, don't have to think of every little detail about a scene, while, as a player, you get the freedom to come up with awesome traits for a scene.
There is very good example of this in the book, with a player making an attempt at a declaration about a building he wants to burgle. The player declares that there might be some form of vent on the outside, he may attempt to enter. The GM might allow this flat out, ask him to roll for it and see the outcome or flat out deny it, because he
did establish just that fact.
I can see what you'd want to do, but even without any experience playing this game, I do feel it would lessen the overall fun and challenge of DF when you standardize aspects. For example with your example, what if one of the kids had been annoying that afternoon, very boastful and insulting. The aspect might become
All Fingers Pointing at Him