Here are answers that
Is it harmful for children to play with toys that are associated with aggression like toy knives, swords or guns?
Many parents and teachers worry when children bring toy guns or other toy weapons into their play. There is no simple answer. Children use their play to work out, express, and master their experiences in the family, school, neighborhood, and with the media and if they see real or pretend violence and weapons, they may bring that to their play. Weapons play is also one way children try to meet their need to feel strong and powerful. Not all weapons play is the same and it is important to look at the nature of the play to figure out if it is harmful or not to children. For play to have a positive effect it needs to be controlled by the child, show creativity and imagination, and change over time. That is what happened to weapons play and other play decades ago, when children were playing cops and robbers. But it has dramatically changed in the past decade with children being increasingly exposed to guns and fighting in the news, TV programs, movies, video and computer games, and to “toys of violence” marketed through TV programs and movies. Play has become mostly imitative, - the play with violence often imitates TV scripts, and children often have little opportunity to use creativity and imagination to work out their own ideas about situations. This kind of weapons play can be harmful to children and may contribute to the development of aggressive behaviors.
What should adults do if children spontaneously use their fingers or an object to represent a weapon?