The only time I shoplifted when I was in middle school, and I took a candy bar from a gas station, just because. I got away with it, but I felt so guilty, I didn't do it ever again.
I did see a mom make her daughter go in, give back some bracelet, and apologize for stealing it. You could tell the girl was more annoyed than remorseful (the girl looked to be somewhere between six and eight), and then once she was done, the mom still chewed her out while dragging her to their car.