In some respects we are not far behind that mentality in this country, look at the boys who are ejected from school for 3" guns.
Boys will always play war and fashion fake weapons and use toy ones if available.
Cops and Robbers, Cowboys and Indians, Civil War, World wars on and on.
In my opinion stifling this desire in a child is like stifling the play puppies have that teach them self defense and how to handle other dogs when they are older.
This quote is a universal truth though:
"If itís illegal there is too much profit. You make 100 per cent profit if itís illegal and only 15 per cent profit if it is legal,"