My mother specialized in early childhood learning and developmental psychology. She never once blinked when my brother and I played Doom or Wolfenstein, some of the most violent games of their times. We were allowed to play with toy guns and listen to whatever music we wanted including heavy metal (which my father despised.)

I asked her about this later in life and her answer was and she laughingly told me "I knew you two were well aware of the fact that it was a fantasy. I never saw it influence any unhealthy behaviour. Plus its a good aggression outlet for young boys."