LONDON (Reuters Life!) ---- Forget about talking your children into considering life as a doctor or a teacher and start training them for the talent show. A survey of British parents showed the aspirations   of their children are greatly different from what they dreamed about when considering who they wanted to be when they grew up. Although astronaut   still remains fairly high on the list of careers   kids dream about these days, others like doctor and teacher have been taken the place of by the desire   to win good name and money as a sporting hero, pop star or actor. The parents of children aged 5 to 11 said the choice of lawyer had dropped by only one place on a top 10 list to sixth, while teacher had dropped to ninth from top in the last 25 or more years. The survey for British TV channel "Watch" found a great difference between the genders   of today's young people when compared with their parents' dreams 25 years or more ago. Playing professional football, being an astronaut and joining the firefighting service topped the boys' choices, while girls are more likely to be dreaming of taking to the stage as a pop star or actress or joining the medical profession. When asked what they would like their children to do for a living, today's parents still like the academic   professions  , with law and medicine scoring highly, while being a boss came third. Parents also praised job happiness above wealth   when it comes to their hopes for their children. Nearly 70 percent of the parents surveyed thought that they failed to follow their dreams when it came to their career, with 37 percent thinking it was caused by a lack of aspiration and not having the necessary conditions. What is the main idea of the passage?
Many reasons cause the change of children's dreams. Parents' dreams are different form children's. Parents are changing their own dreams. Children's dreams are always changing.