There was a thread on here about 2 years ago about the two week shutdown. There was also a lot of controversy around it.
The gist of it was mainly for rescue dogs. The purpose was to give them a solid two weeks of just observing their new environment, feeling the vibes in the house, seeing, smelling and hearing everything that goes on around the house.
A lot of people thought it meant that the dog was crated for two weeks straight - which is not the case. BUT, if you have other dogs in the house, the "rescue" was in the crate in the living room while the other dogs got a chance to sniff, greet (one at a time) and check out the new dog. This also gave the rescue dog a chance to sniff, greet and check out who he would be living with.
The rescue dog would also be "attached" to the owner, by leash, and follow them around the house to see what it's all about. Depending on circumstances (i.e. aggression, other dogs, etc.) it was modified to ensure that everyone was safe.
The two week shut down did NOT encourage walks anywhere but just to keep the dog in the house or the backyard.
There was some controversy about this as well - exercise being a concern, and another issue was people that don't have backyards.
Walking in early morning / later in the evening seemed to be the optimal solution. The purpose was to not put any stress on the rescue dog until it had a chance to settle down.
The 2-week shutdown was brought up in one post because so many people were bringing their new "rescues" out to meet all their friends, family, neighbours, dogs, etc. and there were a lot of negative reactions from the rescue. Everyone wanted to show off their new dog - but it was causing so much stress on the dog that some of them bit, showed aggression to their new owner, became destructive, etc.
If you search for two week shut down on this site, you will definitely find some threads that will cover more information than I have provided here.
Personally, I think it's a great idea to limit what the "rescue" comes in contact with for the first couple of weeks. There is ZERO bond with "you" and this dog. He will NOT look to you for guidance during the first couple of days that you have him, because he doesn't have a clue who you are, what you are going to do, and how you are going to react. IMO, so much damage can be done to the dog (and those in its environment) by traipsing it all over the place when there is no bond at all.
IMO, give the dog a chance to bond with you, then start out slow. You also need to see what this dog is capable of (or not), how he's going to react (or not) and what he's going to react to (or not!)
Marionís Zoo-Kyleigh, Raylan-cat, Echo-TAG,