Emmeline was torn between wanting to send Peter away so she didn't have to deal with him and wanting him to stay — purely so she could put him to work. She went with the more mature option. Plus, if he was there, at least she could keep an eye on him. "No. As long as you're here..." she trailed off, looking around the store. What to have him do. Hmm.
"You can restock potatoes. There are some crates of them in the back," she finally decided, pointing to the area where the vegetables were located. "You'll see where they're supposed to go."