This is right. Training a dog or dogs lays the foundation and opens up tons of possibilites but if the owner's/handlers don't follow through, it's all going to go to crap. I actually trained this girls 20lb terrier mix and she is AWESOME. Learns fast, lots of drive, but her roomates don't follow through with anything, and I only gave them a few rules. So when I go to pick the dog up for boarding or more training, when I walk into the apartment it's like the dog has never received any training at all. It's not an issue once I take the dog because she knows when I am present, I control the situation and she listens to me, but it's not helping the owner any that her roomies don't follow through.
Training dogs is easy in comparison to training people.