A huge bonus of Dog Training Camp's Technique is each trainee lives in the trainer's home, and is treated like a family member during their stay. Here you can see Storm hanging out AND learning with her trainer Anitra's pack.
Dogs learn behaviors from other dogs. Sometimes it's actually easier for them to learn from another dog. Anitra's pack members are showing Storm that "Sit at the door" applies to ALL doors ALL the time. This is a difficult lesson because they're heading out the door to play, and all the dogs know it.
Sitting at the door requires a lot of self control because they're excited about what comes next. Establishing calm and control before you even step out the door puts the dogs in the right mindset for their playtime. In case someone tries to play too rough or decides to roll in something dead, all trainer Anitra has to say is "Eh, eh!" and the dogs know to listen to she who controls the door.
Good job Storm, Sampson & Roxy!