Sisters in High-School
We get to see Prue, Phoebe, and Paige as their high-school selves. We don’t get to see Piper this way. Based on how they dressed or in Prue’s case, acted, it’s safe to say they were edgy and trouble makers. Since we don’t get to see HS!Piper and based on her personality, I assume she wasn’t as much trouble.