I Really Need An Explanation For That - Tumblr Posts

Okay, so do you remember the breakfast scene

Luisa's carrying table outside to eat.

And then Abuela literally withing two seconds

Casita's moving the chairs to the table.

Now please, explain to me... Why Luisa had to carry it in the first place? I'm pretty sure that Casita was able to move the table as well. Do they just giving Luisa some random chores that don't even request her help?