ORIGINAL: Rob/PA Bowyer
Never too young to start if they want to spend time with Dad and you make all the necessary arrangements to ensure their excitement and comfort and, you don't take hunting too serious when they are there.
I agree , I started my grandkids out as young as 5 . Talk to your wife and assure her that they will be safe , she has some say there , your inlaws do not . Take the boys out separately .