There's no way anyone can say '100% w/o a doubt' but you know your BPs better then us. I've had mine 4 months and he's never once struck me or shown any signs of aggression but I'm still a little unsure that I want my young kids holding him because I can't predict their behavior (sudden movements, dropping, etc...) and his reaction to that behavior.
I would teach them the rules of the road and start slow w/ monitored and short holdings and go from there. Good luck.