Well over half a century ago, it was believed that reading science fiction was addictive and damaging to the minds of young people. Adolescents who walked around with books by Heinlein or Herbert or Clarke or Asimov, or Verne under their arms were somehow abnormal and were the subject of scientific inquiry. These young people were using escapist fiction to avoid human interaction and were ruining their lives by reading about spaceships and ray guns and distant planets, and alien species. A host of parents panicked and banned these books and their authors from the lives of young people.
The few, more tolerant, parents who allowed their children to keep reading raised sons and daughters who became the scientists behind NASA, Apollo, the ISS, the Space Shuttle, and the host of medical advancements brought about by space flight. These young people became the scientists behind the worlds nuclear submarines. They became the scientists who were the driving force behind the modern computer age.
Further, these young people grew to have a wider view of the world, were more tolerant of the superficial differences in people and were more open to new ideas and new approaches to solving problems. These people became part of the fastest growing scientific advancements in human history. These were the people who changed the world from wine, women and song to sex, drugs and rock and roll. These were the people who brought the world Woodstock and stopped a war.
So, let the kids play. Who knows what exposing children to new and different species might spawn in the way of tolerance. Who knows what exposing children to new ideas and thinking might produce in advancements needed to accommodate the worlds burgeoning population. Who knows what allowing children to employ strategic thinking and problem solving might yield in means to solve as yet unknown problems. Who knows what the next generation will do with the imaginings sparked by a video game.
What follows is editorial in nature, and will offend some people. Read with caution.