Boys have been playing this for a long time, I am sure they didnt all turn out murderes of similar. Its just a boy thing. Both mine like guns, they make gun noises. It dosnt disturb me as I know they arnt killing their mum with a plastic gun or have any intention of doing it. We even have archery here in the garden to and my landlords kids like to pretend they are soldiers and play war a lot. They target shot to. Child hood games. Different from having a real gun when older I think. I wouldnt like to say to my kids all their games where banned they wanted to do. Off limits, i dont think they will thank me for letting them do what boys do.