Another vote for the dumerils, mine is only about a year and a half now but has never nipped or struck at anyone. He's the only young snake I will hand off to my nieces/nephews to hold. He is fast moving at this size would be my only concern with kids but that's easy enough to manage. Seeing one at a reptile education event is what sparked my interest in them as a species and so far been very happy with him, great eater too.