I will have to disagree with you on this Karen as a friend picked up her 12 week old puppy from her breeder last week (work commitments of year end at the end of March meaning she couldn't take time off before April) and her puppy Rosie has been amazing. Yes the first couple of walks she was a little bit timid as she hadn't been exposed to the noises of a town before this, but she has settled in so well with my friend and nothing has phased her yet and she's been to the stables to get used to horses, sat outside Windsor Castle for the changing of the guards, been played with by friends children, had a day with me and Betty, met all types of dogs out walking (and played with them also!).Sorry Donna I don't mean to disagree with you at all BUT I would be wary of leaving a puppy with a breeder up to the age of 12/13 weeks. This is a very important time in puppyhood and during this time it is best to expose your puppy to lots of different things, places, noises, people etc. I doubt even the best of breeders would be able to commit the time and effort this requires, plus they will not know the situations that may be unique to your house or lifestyle and so will not be able to do this on your behalf.
It is hard work and I am afraid there aren't really any short cuts but it is soooo worth it in the end. All the hard work, worry and stress melts away when you go on a lovely long walk with your companion
I know my friend was worried about getting a 12 week puppy but it really hasn't been an issue at all. Even with crate training she has settled so perfectly into using it even though she wasn't in a crate at the breeders. She takes herself off to her crate when she feels like it and this morning my friend had to wake her up at 7.15 as she was still asleep in her crate!!
So whilst there are pros and cons for getting a puppy at 12 weeks, please don't think it's impossible as it really isn't and there are definite benefits in that you can walk the puppy straight away.