I have a GR/YL mix and it sounds like he acts the same way. We got him at 5 wks and he was never in a frightening situation, was hugged and kissed, etc, but he is fiercely protective unless he know you. He has never bitten anyone either, but will bark like crazy at kids playing ball on our street (he calms down after a few minutes)or at bikes. We have had young relatives at our house and he will stay by my side,lean on me or hide under the kitchen table. his reactions are a lot quicker than mine, so 1% of me will never trust him completely. I'm always on the alert. I guess "good with kids" depends on the personality, not the breed.