When is the best time to adopt a border collie?

From weaning to 6 months. It is difficult to deal with illness when you are too young. Puppies usually "turn their intestines" when they are 3 or 4 months old. If they don't get proper care, the puppy may die. Or wait until it is older and passes through the "intestines" before adopting. It will gradually adapt to the new environment. As long as you are kind to it, it will treat you as a real master. Even a 6-month-old dog is still a puppy and will be very close to you in a few days. Even if you rename it and cultivate new habits, it will be learned within a week. So you don't have to worry about it kissing the breeder. Do you think breeders will love keeping dogs as pets as we do?