
Having owned show and working bred labradors, I have to say that alot of normal family homes would not cope with a working bred labrador.
I show and breed and brought in a working labrador to train up for working tests and working. Well the training, working tests etc were all easy for her, she was a natural but I didn't enjoy it much. She was very hyper but not compared to some of them out there!!! When I moved I asked her trainer who loved her to bits if he wanted to take her on which he did, she still lives there 5 years on and is happy.
On the other hand my show bred labs are for the most part laid back. I have used lines which also work and the other side where the dogs are heavier. In my opinion all have the same lenght of leg but the body shape makes some seem shorter. I like doggy looking bitches and so mine are big and chunky. I have one here who is 2 inches under the breed standard bless her but she has been shown as a youngster, she is pets as therapy registered AND she has worked. Even with short legs she can clear a fence or gate like any of the working labs she worked with. The trainers laughed when I first took her and said she wouldn't do it, well a couple of months later they were gobsmacked watching her. In my opinion she might be short but she can do it all, so short legs might hinder in some cases but it
doesn't mean that dog can only show.
In my opinion show bred labradors make the better family pet, they do not require as much exercise and in a family home with children, school, nursery, after school activities etc etc some days families do not have a couple of hours to exercise the dog, not ideal maybe but a labrador will fit in no matter what.
Having been to Crufts after a break from the ring I ws shocked to see that the labradors had gotten smaller in frame and overall size and that for now is obviously what is doing well in the ring, however I like what I have, have always done well with them and will not be producing smaller built dogs to fit in with what IMO is the latest faze. If the judges don't like the full heavy frame anymore then me and the dogs will enjoy a day out. When I first started showing the big heavy type were winning then it went to smaller frames and back to bigger labs, now we seem to be going smaller again.
Some of the labs I have bred compete in the ring, some at flyball, agility and obedience, most are family pets. Whatever they do they are all labs and all breeders should be trying to achieve that even temperment that the lab is so well known for.