I just thought that I would give you a peak into the bonding that has occurred between Ricki my male German Shepherd Dog and my grandson Grant. In this short video you will see them playing on the tennis court. Grant pushing a tennis ball roller and Ricki chasing it. You will notice that Ricki is being very vocal in his pursuit of the roller. This is his higher pitched play bark and not his I mean business bark.
You may notice that Grant is not concerned in the least about the noises that Ricki is making. There is never any growling, pushing, grabbing or mouthing by Ricki. The dog is excited but knows how to play with little people.
If you are considering raising children with large dogs temperament and discipline are of the utmost importance. I don't necessarily mean discipline like in competition but discipline in who is the pack leader and knowing the rules of interaction between the dog and his people. Enough of my opinions on dogs here is the video.