You know you could make the same argument about dogs and cats. Before we started breeding dogs and cats as pets they never got any of blankets or treats out in the wild but they do now. I'm sure if you keep breeding the calm dragons and the ones that come close to humans and don't mind or even like being touched you can change the whole breed. As I said we did it with dogs and cats. Just look at the bulldog 300 years ago. You would have never let your kids around them yet we made them into pets.