The thing about obedience training is that it's a great way to strengthen the bond between you and the dog. As a conservative dog owner, you're probably used to a lot of independent behavior, unchanging ways, and frustration when you change things up. Maybe you moved the food bowl, and now your dog is flustered. With obedience training, you're establishing much more trust between you and the dog, thereby calming the dog down when you're moving things around.
It may seem counterproductive, but some conservative dogs, whom all tend to be set in their ways, and be serious, truly benefit from seeing other much more laid back dogs. Just make sure that before you just take the dog to the daycare center, you let the daycare staff know that your dog tends to be more serious. That way they know what they could potentially be getting themselves into and will know how to interact with your pup in a positive way.