I"m a bit *meh* about it too. I love a good nerf gun fight with the kids and what everyone else has said about them is so true - you can not let them watch violent things and not have toy guns in the house, but imaginative play is a natural and normal part of their development and I'd hate to stifle that. I don't condone letting children watch anything violent, but my point is that they pick it up anyway - from other kids, from other environments etc. The most important thing is that you keep the lines of communication open and make the difference between pretend play and reality very clear to them.