I think it depends on the dog and their lifestyle. I work at a pet boarding facility and recently a beagle mix puppy came in and his dew claws amazed me. They were so loose, I'd never seen anything like it. I talked to the owner about it and they said they were going to get them removed when her was neutered. They had already talked to their vet about it and he too thought it was dangerous for the puppy to keep them.

As far as my dogs go, Charlie is the only one who has had his dew claws removed and he had them done before I got him. I wouldn't have removed unless I felt it necessary for the dogs safety.