Labs are bred to have a 'soft' bite, traditionally so that they can retrieve game birds without damaging them.
That's not to say labradors never bite, just that usually it's not as serious as with some other breeds as they just don't have the jaw strength. Nibbling ... well that's another matter![]()
I believe all dogs can be trained to soft bite. I have a puppy and to begin with she would take chunks out of you, but we would squeel and walk away when she did. Now she play bites with so little force, because she has been taught that human skin is soft and tender. I would leave her in the room with a new born baby and I 100% know she wouldn't do a single thing. The baby would likely drown in licks.
Dogs can't be blame for their nature or their teaching. They are willing to do what they are told if they are taught it. That is the reason they should be free from secrutiny.